Temperature range is -30 to 130[degree]C. 0.3% accuracy. Chemically resistant. Measures conductivity, resisivity, and dissolved solids. With glass probe and 9V alkaline battery. For reagent-grade water for CAP, ASTM, NCCLS, ACS. NIST traceable.
HOBO* Water Level Data Logger, titanium, No-vent-tube design for easy and reliable deployment, Ideal for recording water levels and temperatures in wells, streams, lakes, wetlands and tidal estuaries, 3-point NIST, 13 Foot Depth
HOBO* Pendant Wireless Temperature Data Logger, compact, waterproof, has large memory that stores 96,000 measurements, Ideal for measuring temperature in streams, lakes, oceans, and soil environments, +/- 0.5 deg C (+/-0.9 deg F) accuracy
0.3% accuracy. Measures conductivity, resistivity, dissolved solids. Selectable ranges. Readings internally referenced to standard of 25[degree]C. With RS-232 output, jack, probe. NIST traceable. Measures reagent-grade water for ASTM and more.