The XS testers for conductivity control are lightweight and can fit comfortably in your pocket.
All models are IP67 watertight.
Series 1 features a transparent body, large LCD display, non-replaceable sensor and uses 4 1.5mV AAA battery or rechargeable battery.
COND 1 model has a calibration of 1 ... 2 points, a scale range of 0 ... 2000 microS - 0 ... 20mS, a long-lasting sensor (not replaceable) and comes in a handy second case briefcase for calibration, solutions for calibration, handkerchiefs to dry the sensor and lanyard for easy transportation.
COND 5 differs for the wide, backlit colored display, it has the interchangeable sensor and three-point calibration. It comes in a handy second-caliber briefcase for calibration, calibration solutions, handwashes for drying the sensor and lanyard for easy transportation.