Description: WIDE APPLICATION: Suitable for drinking water, swimming pool, aquarium, reverse osmosis system, spa or hydroponic. EASY OPERATION: Wide application range, fast measurement and simple operation, reliable to use. SENSITIVE SENSOR: The water quality tester has a sensitive sensor to read accurate values. ACCURATE MEASUREMENT: High sensitivity probe for more accurate measurement, more practical to use. PREMIUM MATERIAL: Adopting high quality ABS material, resistant to corrosion and durable in use. Specification: Range: EC: 0-19990us/cm; 0-199.0ms/cm TDS: 0-9990ppm; 0-199.Oppt SALT: 0-199.9ppt; 0%-20.0% S.G: 1.000-1.400 Temp: 0C-50°C (32°F-122°F) Resolution: EC: 1us/cm(1000us/cm); O.1ms/cm TDS: 1ppm (1000ppm); O.1ppt SALT: 1 ppm (1000ppm); 0.1ppt; 0.01% S.G: 0.001 Temp: 0.1°C (0.2°F) Accuracy: EC, TDS, SALT:+2%F.S Temp: t1.0°C(+2.0F) Battery: 3V(CR2032)(not included) Temperature Compensation: 0~50°C Operating Temperature: 0~50°C Material: ABS Plastic Size Chart: 155x30x25mm/6.10x1.18x0.98inch Package Includes: 1 Piece 5 in 1 EC/TDS/SALT/S.G/Temperature Portable Digital Water Quality Tester 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!