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: Battery: 3X1 5V(AG-13) (NOT INCLUDED) Range: PH: 0.00-14.00PH EC:0-19990us/cm 0-199.0ms/cm TDS: 0-9990ppm 0-199.0ppt SALT: 0-199.9ppt 0%-99.9% S.G:1.000-1.400 Temp:0-50°C(32°F-122°F) Resolution: PH: 0.01PH EC: lus/cm(1999us/cm)0. 1ms/cmTDS: 1ppm(1999ppm)0.1ppSALT: 1ppm(1999ppm)0.01%as.G:0.001Temp:0.1°C(0.2F)Accuracy:pH:±0.03pHEC/TDS/SALT:2%F.STemp:±1.0°C Temperature Compensation:O-50°C Operating Temperature: 0-50°C Mateial: ABS Plastic Size Chart: 180x45x45mm/7.09x1.77x1.77inch Package Includes: 1 Piece 6 In 1 PH Meter EC TDS Salinity S.G Temp 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!