5 in 1 Water Quality Tester Pool Water Tester EC/TDS/SALT/S.G/Temp Tester Water Testing Detector with Backlight for Aquaculture Drinking Water Swimming Pool Aquarium This 5 in 1 water tester is lightweight and portable, allowing you to easily carry it around in your pocket, whether you are at the pool, on a trip, at the beach or camping. Simple operation, you just need to immerse the electrode of the tester in the solution and wait for a few seconds to obtain the data on the LCD screen. Features: 5 in 1 water tester, pen type design, lightweight and portable, allowing you to easily carry it around in your pocket, whether you are at the pool, on a trip, at the beach or camping. Simple operation, you just need to immerse the electrode of the tester in the solution and wait for a few seconds to obtain the data on the LCD screen. Designed with accurate electrode for precise measurement, with 0°C-50°C (32°F-122°F) wide measure ranges. Automatic temperature compensation, which ensures measurement accuracy at all temperatures, can perfectly resolve possible errors due to changes in solution temperature, thus making the readings more accurate. Wide applications, suitable for domestic water, aquarium, aquaculture, catering food industry, fishery, swimming pool. Specifications: Color: White & Blue Material: ABS Range: EC: 0-19900us/cm, 0-199.0 ms/cm TDS: 0-19900ppm, 0-199.0ppt SALT: 0-199.0ppt, 0%-20% S.G: 0.990-1.400 Temp: 0℃-50°C(32°F-122°F) Resolution: EC: 1us/cm(<1999us/cm), 10us/cm(>1999us/cm), 0.1ms/cm TDS: 1ppm(<1999ppm), 10ppm(>1999ppm), 0.1ppt SALT: 1ppm(<1999ppm), 10ppm(>1999ppm), 0.1ppt, 0.01% S.G: 0.001 Temp: 0.1°C (0.2°F) Accuracy: EC/TDS/SALT: E2%F.S; Temp: ±1.0°C Battery: 4 x 1.5V(AG-13) (Not included) Temperature Compensation: 0℃-50℃ Operating Temperature: 0℃-50℃ Item Size: 204 * 45 * 45mm / 8.03 * 1.77 * 1.77in Item Weight: 110g / 3.88oz Package Weight: 200g / 7.05oz Package Size: 30.5 * 5.5 * 5.3cm / 12.01 * 2.16 * 2.09in Package List: 1 * Water Tester 1 * User Manual (English)