This is a longer version of our pH electrode. It allows you to connect 50 Ohm BNC socket directly into the input terminal of pH meter or pH controller or any pH device that has a BNC input terminal. This pH electrode has a longer body, an economical, durable and quickly provide highly accurate results. It comes with a protective cap to ensure the safety of the bulb. Works well handheld meters, testers or controllers. Features: Easy monitoring of pH accurately Replaceable pH electrode is easy to calibrate With Automatic Temperature Compensation It is very reliable, stable and transportable The operation is simple and comfortable Specifications: Measuring Range: 0.00~14.00pH Resolution: 0.01pH Accuracy: ±0.01pH Operating Temperature: 0~50°C Automatic Temperature Compensation (ATC): 0~50°C Cable Length: about 300cm long Connection: 50 Ohm BNC socket Set Includes: 1 x PH Electrode 3 x Calibration powder (pH 4.01 / pH 6.86 / pH 9.18) Carrying case