Features:  Made of superb p lastic material, it is long-lasting use.  Clear reading and it designed with 5 mins auto shut down for energy-saving.  3 in 1, EC/ TDS/temperature measurement, reading locking function, one price for multiuse.  Operated by built-in cell, mini size and lightweight for better use experience.  Nice for the measuring of drinking water, laboratory, industrial waste water, aquarium, swimming pool, aquaculture, rice fields, etc.    Specifications:  Material: P lastic  Color: White  P ower s upply: 1 * 3V 240mAh CR2032 Cell(Included)  Measurement Range:  TDS: 0-9999ppm  EC: 0-9999US / c m  Temperature: 0.1~80.0℃ (32.0-176.0℉)  Accuracy: ±2%  Package Size: Approx. 160*30*30mm  Package Weight: Approx. 100g    Packing List:  1 * Water Quality Analyzer   1 * User Manual (English)