1.The single cylinder pH electrode allows you to connect BNC socket directly into the input terminal of pH meter or pH controller or any pH device that has a BNC input terminal. The cable is long. This gives you the flexibility to measure a solution in a container from the device.2.Once your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) solutions. This pH electrode is economical, response fast and it comes with protective cap to ensure the safety of the bulb.3.This can be used for general water applications such as drinking, domestic and rain water, swimming pools, aquariums, green houses plus its compatible with handheld meters or controllers. Features:Easy monitoring of pH accurately plus the values can be achieved within few secondsReplaceable pH electrode is easy to calibrateComes with calibration fluidsIt is very reliable, stable and transportableThe operation is simple and comfortableComes with storage solution, keeps the electrode moist to maximize electrode performance and extends electrode life Specification:Measuring Range: 0.00~14.00PHResolution: 0.01PHAccuracy: 0.01PHOperating Temperature: 0C~50CAutomatic Temperature Compensation (ATC): 0C~50CConnection: long cable with BNC socket Dimensions: 150mm long x 12mm diameter (without the cap) Package include:1 x pH Electrode BNC Type