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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Microcystin, one of several toxins produced by the cyanobacteria that form harmful algal blooms (HABs), has become a popular topic of lake research as the human health impacts of HABs become better understood. Stone Lab is one of the leading groups in algal bloom research on Lake Erie and other lakes in Ohio. For more than 100 years, Stone Lab has conducted biology research and provided science education and outreach to the region. Over the years, thousands of individuals of varying ages have learned from the resources Stone Lab provides. Stone Lab’s Research Coordinator and Senior Researcher, Justin Chaffin, learned of Stone Lab while an undergraduate student at Bowling Green State University Fireland Campus.
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From Assessment to Angler: Continual Research Ensures Lake Erie Remains a Beacon of Freshwater Fishing
Lake Erie is well known for its abundant recreational fishing. Anglers come from across the country to try their luck at the “walleye capital of the world” and search for other freshwater species, such as bass, perch, and steelhead trout. As one of the world’s largest freshwater fisheries, much effort is made behind the scenes to maintain fishing opportunities for visitors to enjoy year after year, efforts that often go unnoticed by the public. One of the lake's most important economic and tourism centers is the city of Sandusky, home to the Sandusky Fisheries Research Station . As part of the Ohio Division of Wildlife, the unit serves as a base for assessing fish populations and managing harvest with partner agencies from around Lake Erie.
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