Measure & display Conductivity and temperature simultaneously. Applications & Usage: Perfect for both consumer or commercial use such as in water systems, aquaculture, drinking water production, monitoring the cleanliness of swimming pool & spa, nutrient, hydroponics, household, office, aquariums, teaching material for physics and chemistry lessons, galvanic shop, ionized water, and laboratory. Features: CE certificate Big LCD with dual display Auto and manual range Auto Temperature Compensation 1-touch auto-calibration Multi-point calibration, 1 point per range Adjustable Calibration values Calibration information review Reset to Factory Setting is allowed to reset all your set parameters, this includes calibration setting Auto power off, °C/°F units, Data hold, sleep mode (on/off), and battery low indication Specifications: Conductivity Range : 0-1999uS or 0-19.99mS Accuracy : +/-1% F.S +/-1 digit Resolution : 1uS or 0.01m Temperature Range : 0-50.0°C Accuracy : +/-0.5°C Resolution : 0.1 °C/°F Temperature coefficient :0-4.%/°C (default to 2.1% per °C, adjustable) Normalization Temperature : 20 or 25°C (default to 25 °C, adjustable) LCD size : 30m(H) x18 (W)mm Operating environment: 0-50°C and