"" This professional pH meter is an accurate and perfect tool for testing your water level. Suitable for the aquarium pool and the environment. features: Simple to use, solid and durable to use. Separate pH and temperature sensor. PH and TEMP probe. Automatic shutdown and online monitoring. Apply in water sources, aquariums, hydroponic crops, spas, swimming pools and other water supply systems. CE and RoHS certified to provide safer and more accurate measurements. Clear LCD with backlight, easy to read and accurately measure functions. Replaceable BNC pH sensor probe with protective cap. Very convenient for changing electrodes, and complete with various industry testing needs. Characteristics: Range: pH 0.00 ¡" 14.00 TEMP: -50 ° C ¡" 70 ° C (-58 ° F 158 ° F) Resolution: pH 0.01 TEMP: 0.1 ° C (0.2 ° F) Accuracy: pH ± 0.1 TEMP: ± 1.0 ° C (± 2.0 ° F) Temperature compensation: 0 Â¡Ă¦ 50 Â¡Ă¦ (32 ° F 122 ° F) Ambient temperature: 0 Â¡Ă¦ 50 Â¡Ă¦ (32 ° F 122 ° F) Power supply: DC 6V (usable AC