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 accuratelyReplaceable pH electrode is easy to calibrateWith Automatic Temperature CompensationIt is very reliable, stable and transportableThe operation is simple and comfortableSpecifications:Measuring Range: 0.00~14.00pHResolution: 0.01pHAccuracy: ±0.01pHOperating Temperature: 0~50°CAutomatic Temperature Compensation (ATC): 0~50°CCable Length: about 300cm longConnection: 50 Ohm BNC socketSet Includes:1 x PH Electrode 3 x Calibration powder (pH 4.01 / pH 6.86 / pH 9.18)Carrying case