Submersible smart sensor
The AquiStar CT2X submersible conductivity/temperature sensor features built-in datalogging and can store more than 100,000 records of conductivity, temperature, and time data. It incorporates four-pole electrode cell measurement technology, which reduces fringe field interference errors, lessens inaccuracy caused by polarization effects, and lowers contact resistance problems. Users can work with one electrode over a wide range of conductivity. Powered by two AA batteries or an external auxiliary power supply, it comes with Windows-based software and offers one-point calibration. Instrumentation Northwest Inc. www.inwusa.com.