 | Keck WLM 2000' Water Level Meter Keck 2000' water level meter with Polyethylene coated steel tape and electric rewind. | 
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 | Heron dipper-T 600m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 2000' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 600m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 2000' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Keck WLM 2000' Water Level Meter Keck 2000' water level meter with Tuff Tape and electric rewind. | 
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 | Keck WLM 1500' Water Level Meter Keck 1500' water level meter with Polyethylene coated steel tape and electric rewind. | 
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 | Testwell 2000' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 600m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Keck WLM 1500' Water Level Meter Keck 1500' water level meter with Tuff Tape and electric rewind. | 
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 | Keck WLM 2000' Water Level Meter Keck 2000' water level meter with Polyethylene coated steel tape and manual rewind. | 
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 | Heron dipper-T 450m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 1500' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Keck WLM 2000' Water Level Meter Keck 2000' water level meter with Tuff Tape and manual rewind. | 
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 | Heron 450m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 1500' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Keck WLM 1500' Water Level Meter Keck 1500' water level meter with Polyethylene coated steel tape and manual rewind. | 
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 | Testwell 1500' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 450m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron 1500' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 450m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron dipper-T 300m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 1000' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Keck WLM 1500' Water Level Meter Keck 1500' water level meter with Tuff Tape and manual rewind. | 
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 | Heron 300m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 1000' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Solinst 300' Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Solinst 100m Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Testwell 1000' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 300m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron dipper-T 750' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 200m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Solinst 200' Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Solinst 60m Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Keck ETL 1000' Portable Water Level Meter The Keck ETL level meter is designed to provide accurate and reliable measurements of groundwater levels up to 1000 feet. | 
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 | Testwell 900' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 270m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron 225m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 750' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 1000' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 300m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Solinst 150' Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Solinst 50m Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Testwell 800' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 240m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Solinst 100' Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Solinst 30m Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | Heron dipper-T 600' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 180m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 175m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 600' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Testwell 700' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 200m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Keck ETL 750' Portable Water Level Meter The Keck ETL level meter is designed to provide accurate and reliable measurements of groundwater levels up to 1000 feet. | 
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 | Heron 750' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 200m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Testwell 600' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 175m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron dipper-T 150m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 500' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 150m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 500' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | NexSens Ultrasonic Level Sensor The SC959A-8R0 ultrasonic water level sensor mounts above the water and measures the time of travel for a sound wave to reflect and return to the sensor. | 
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 | Heron dipper-T 120m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 400' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Testwell 50' Oil/Water Interface Meter The INT Series meters use an optical sensor to provide industry-leading accuracy for measuring product and organic solvents. | 
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 | Heron H.OIL 50' Oil/Water Interface Meter The H.OIL is a portable oil/water interface meter that measures the thickness of DNAPL and LNAPL layers as thin as 1 mm. | 
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 | Testwell 500' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 150m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron 120m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 400' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Keck ETL 500' Portable Water Level Meter The Keck ETL level meter is designed to provide accurate and reliable measurements of groundwater levels up to 1000 feet. | 
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 | Heron 500' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 150m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron dipper-T 100m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 300' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 100m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 300' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Testwell 400' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 120m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Keck ET 300' Portable Water Level Meter This portable level meter is designed to provide accurate and reliable measurements of groundwater levels. | 
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 | Heron Skinny dipper 300' Water Level Meter This rugged unit features a 0.25" probe and is intended for use in tubes as narrow as 0.375" inside diameter. | 
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 | Heron dipper-T 100'/30m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Testwell 300' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 100m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron dipper-T 60m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 60m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 200' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 300' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 100m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron dipper-T 200' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 50'/15m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Keck ET 200' Portable Water Level Meter This portable level meter is designed to provide accurate and reliable measurements of groundwater levels. | 
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 | Heron dipper-T 45m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 150' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 100'/30m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 45m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 150' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 50'/15m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron dipper-T 30m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 100' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron 200' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 60m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Testwell 200' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 60m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron 30m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 100' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron Skinny dipper 100' Water Level Meter This rugged unit features a 0.25" probe and is intended for use in tubes as narrow as 0.375" inside diameter. | 
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 | Heron 150' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 45m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron dipper-T 15m Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Heron dipper-T 50' Water Level Meter The dipper-T is a portable water level meter that is rugged, reliable and easy to use. | 
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 | Testwell 150' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 50m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron 15m Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Heron 50' Potable Water Level Meter The Potable Water Meter is for use in drinking water wells only to avoid cross contamination and confusion. | 
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 | Keck ET 100' Portable Water Level Meter This portable level meter is designed to provide accurate and reliable measurements of groundwater levels. | 
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 | Solinst 65' (P1) Model 101M Mini Water Level Meter Solinst Model 101 Mini Water Level Meters are ideal for use in narrow diameter applications as small as 3/8 (10mm). | 
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 | Solinst 20m (P1) Model 101M Mini Water Level Meter Solinst Model 101 Mini Water Level Meters are ideal for use in narrow diameter applications as small as 3/8 (10mm). | 
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 | Solinst 20m (P2) Model 101M Mini Water Level Meter Solinst Model 101 Mini Water Level Meters are ideal for use in narrow diameter applications as small as 3/8 (10mm). | 
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 | Solinst 65' (P2) Model 101M Mini Water Level Meter Solinst Model 101 Mini Water Level Meters are ideal for use in narrow diameter applications as small as 3/8 (10mm). | 
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 | Heron 100' Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Heron 30m Water Level Measuring Tape The low cost and durability of the water tape make it an ideal choice for well drillers, pump installers and other severe service users. | 
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 | Testwell 100' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 30m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Heron little dipper 75' Water Level Meter The size of the little dipper makes it ideal for shallow wells and direct push equipment. Features a 3/8" x 4" probe. | 
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 | Heron little dipper 22m Water Level Meter The size of the little dipper makes it ideal for shallow wells and direct push equipment. Features a 3/8" x 4" probe. | 
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 | Testwell 50' Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | Testwell 15m Water Level Meter The WLM Series water level meter is a self contained, portable instrument for measuring static water level in wells or small diameter samplers. | 
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 | YSI 600XL Multi-Parameter Water Quality Sonde The YSI 065862 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6820/6920 V2 Sonde Upgrade Take advantage of YSI's new optical sensor design with Fondriest's factory-authorized V2 sonde upgrades. | 
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 | OTT Standard Accuracy CBS The standard accuracy CBS from OTT is an accurate, compact, and easy-to-use bubbler sensor for water level monitoring. | 
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 | YSI 600OMS V2 Optical Monitoring System The 600-01 Water Quality Sonde is designed for use with any single YSI optical sensor. | 
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 | YSI 600XLM Multi-Parameter Water Quality Sonde The YSI 603-000 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6600 V2-2 Multi-Parameter Water Quality Sonde The YSI 6600-00 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6600EDS V2 Extended Deployment System The 6600E-00 Water Quality Sonde is designed for extended deployments in severe fouling environments. | 
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 | YSI 6820 V2-1 Multi-Parameter Water Quality Sonde The 6820-03 sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6920 V2-1 Multi-Parameter Water Quality Sonde The 6920-40 sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | OTT Thalimedes Shaft Encoder Level Sensor The float-operated Thalimedes shaft encoder, with integral data logger, is designed for continuous, unattended monitoring of water level. | 
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 | YSI 600XLM V2 Multi-Parameter Water Quality Sonde The YSI 603V2-000 Water Quality Sonde is designed for use with the 6150 ROX Optical DO probe. | 
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 | YSI 600XL V2 Multi-Parameter Water Quality Sonde The YSI 065862V2 Water Quality Sonde is designed for use with the 6150 ROX Optical DO probe. | 
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 | OTT Radar Level Sensor (RLS) The OTT RLS, non-contact radar level sensor with pulse radar technology is ideal for monitoring in remote or hard to reach locations. | 
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 | SonTek Argonaut-SW 3.0 MHz System Ideal for monitoring flows in small channels from 1-16 ft deep, the SW (Shallow Water) offers advanced Doppler performance for sites previously thought impossible to measure. | 
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 | SonTek Argonaut-SL 0.5 MHz System The SonTek Argonaut-SL is an advanced Doppler sonar for water velocity measurement in a horizontal layer. | 
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