Features Smart Testing: High in accuracy and wide in testing range, the water quality tester is able to test pH, EC, TDS, SALT, S.G and TEMP. Easier to Use: The composite electrode together with screw interface makes it suitable for direct testing in small caliber containers. Clear Display: Designed on the basic of microprocessor, the large screen allows for clear and accurate display on the tested value. Easy Carrying: Comes with a light weight and a compact size, the TDS meter can be easily stored and carried for indoor and outdoor. Wide in Using: Can be used to test your aquarium, swimming pool, bath water, drinking water, spa, soap mixes, food, wine and so on. Specification: Item Type: Water Quality Tester Model: ph-786 Material: ABS Battery: 3 x AG13 battery 1.5V, without battery. Uses: For aquarium, aquaculture, fish hatchery, food processing, laboratory, paper industry, swimming pool, school and college. PH: 0.00~14.00PH EC: 0~1999μs/cm, 0~19.99mS/cm TDS: 0~1999ppm, 0~199.0ppt SALT: 0~199.9ppt, 0%-99.9% S.G: 1.000~1.400 Temperature: 0℃ ~ 50℃, that is, 32℉ ~ 122℉.  Package List:1 x Water Quality Tester 1 x User Manual Package List 1 x Water Quality Tester 1 x User Manual