Extech ExStik II Conductivity Meter
Features
- Units of measure include μS/cm, mS/cm, ppm, ppt, mg/L, and g/L
- Automatic temperature compensation of 2% per °C
- Self calibration of electronics on power up
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Extech ExStick Conductivity/TDS/Salinity Meter features a high-accuracy multi-range sensor that measures four parameters: conductivity, TDS, salinity, and temperature. The autoranging meter offers 3 ranges of measurements from tap water to wastewater and any aqueous solution. The units of measure include μS/cm, mS/cm, ppm, ppt, mg/L, and g/L.
Data Potential
Adjustable conductivity to TDS ratio is from 0.4 to 1.0 to conveniently calculate the TDS value. The large 2000-count digital display simultaneously displays conductivity, TDS, salinity, and temperature, and uses an analog bar graph to indicate sample trends. The internal memory stores up to 25 labeled readings for easy recall. The conductivity module is easy to replace, and the self-calibration function activates when the meter powers on. Other meter functions include data hold, power off, and low battery indication.
- Conductivity ranges: 0 to 199.9μS/cm, 200 to 1999μS/cm, 2.00 to 19.99mS/cm
- Conductivity maximum resolution: 0.1μS/cm, 1μS/cm, 0.01mS/cm
- Conductivity basic accuracy: ±2% FS
- TDS ranges: 0 to 99.9ppm (mg/L), 100 to 999ppm (mg/L), 1.00 to 9.99ppt (g/L)
- TDS maximum resolution: 0.1ppm (mg/L), 1ppm (mg/L), 0.01ppt (g/L)
- TDS basic accuracy: ±2% FS
- Salinity ranges: 0 to 99.9ppm (mg/L), 100 to 999ppm (mg/L), 1.00 to 9.99ppt (g/L)
- Salinity maximum resolution: 0.1ppm (mg/L), 1ppm (mg/L), 0.01ppt (g/L)
- Salinity basic accuracy: ±2% FS
- Temperature range: 32° to 149°F (0 to 65°C)
- Temperature maximum resolution: 0.1°F/°C
- Temperature basic accuracy: ±1.8°F/1°C
- Power: four CR2032 button batteries
- Dimensions: 1.4 x 6.8 x 1.6" (36 x 173 x 41mm)
- Weight: 3.8oz (110g)
- (1) ExStick Meter
- (1) Protective sensor cap
- (1) Sample cup with cap
- (4) 3V CR-2032 batteries
- (1) 48" neckstrap
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In The News
What is Conductivity?
UPDATE : Fondriest Environmental is offering their expertise in conductivity through their new online knowledge base. This resource provides an updated and comprehensive look at conductivity and why it is important to water quality. To learn more, check out: Conductivity, Salinity and TDS. Salinity and conductivity measure the water's ability to conduct electricity, which provides a measure of what is dissolved in water. In the SWMP data, a higher conductivity value indicates that there are more chemicals dissolved in the water. Conductivity measures the water's ability to conduct electricity. It is the opposite of resistance. Pure, distilled water is a poor conductor of electricity.
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Data-Driven Decisions: Tracking Sediment during the Klamath Dam Removal
The largest dam removal in U.S. history, the deconstruction of the Klamath Dam is slated to begin this summer. The project includes four dams along the Klamath River with the first and smallest dam, Copco #2, scheduled for removal first. As each of the dams are torn down, scientists and consultants will keep a close eye on the state of the Klamath River downstream to assess the impact of undamming the river. Shawn Hinz, managing partner and environmental toxicologist with Gravity Consulting , has been involved with the Klamath Dam project for over a decade. Hinz was a part of these earlier steps, representing the academic stakeholder position as a graduate student sitting on a board of other stakeholders.
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From the Tap: Source Water Monitoring for Public Health
In regions with historically secure access to clean drinking water, few think about the work that goes into ensuring that the water they fill their cups with is safe. In reality, millions of dollars are invested in the infrastructure, equipment and teams involved in converting source water into drinking water. While all the work that goes into providing clean water often goes unnoticed, analysts like Michele Gilkerson, a water research analyst with the City of Columbus Division of Water, know exactly how much goes into securing safe water for millions of people. Gilkerson started with Battelle Memorial Institute in 1991 in their water ecology section. There, she saw how interesting source water monitoring could be, even though it isn’t often spotlighted in the environmental sector.
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