341350A-P Extech PH, Conductivity, TDS & ORP Salinity Meter. With Automatic Temperature Compensation for Conductivity & TDS and manual Temperature Compensation for pH (0 to 100°C). Thermistor probe measures 0 to 90.0°C
EC400 ExStik® Conductivity/ TDS/ Salinity Meter . The Extech EC400 ExStik® features six units of measure, internal memory that stores up to 15 labeled readings for easy recall, adjustable conductivity to TDS ratio factor from 0.4 to 1.0, and self-calibration upon power up. The EC400 incorporates the latest microprocessor chip technology and patented sensor technology to enable the simultaneous measurement of conductivity, TDS, salinity, and temperature.
EC170 Salinity/Temperature Meter. The EC170 is a Salinity Meter with Waterproof design (IP65). Measure salinity in aquaculture, environmental studies, ground water, koi ponds, irrigation, drinking water and other applications. Features a High accuracy multi-ranging sensor and Auto Power off with disable. Autoranging with 2 ranges of measurement. Data Hold, Auto Power Off and Low Battery Indication. Complete with salinity sensor, protective sensor cap, and 4 LR44 button batteries.
DO700 Portable Dissolved Oxygen Meter. The 9-in-1 DO700 Kit measures DO concentration / saturation, pH, mV, Temperature, Conductivity, TDS, Salinity, and Resistivity. It features automatic salinity compensation and manual barometric pressure compensation for DO measurements. In addition, it has automatic one button calibration of 4, 7 and 10 pH with a choice of three-point calibration for better accuracy and it provides automatic temperature compensation. Complete with DO probe, pH/mV/Temp electrode, polymer Conductivity cell, pH and Conductivity calibration solutions, batteries and hard carrying case.