The detachable pH electrode with BNC connection and cable is durable, heavy duty and possesses a high sensitivity, extremely fast in measuring liquids suitably. With its BNC plug and 3m cable, compatibility is not a question anymore and that makes it the total electrode. The GX-E2 is suitable for continuous operation for all controllers, meter, testers and other monitoring devices. Just connect the GX-E2 electrode to the equipment and it's fully functional and ready to use. Once your new pH electrode probe is connected to the electrode input terminal, you will need to calibrate it using the supplied calibration (buffer) solution. The GX-E2 comes with a protective to ensure the safety of the bulb. Features: Made of high-quality materials, it is durable and practical. Cable is durable, and possesses a high sensitivity, extremely fast in measuring liquids suitably. This product can accurately detect the pH value, the value is accurate and rapid. Easy to calibrate, small error, simple and comfortable to operate. Very reliable, stable and easy to carry. It is equipped with a 300cm cable for more flexible use. Specifications: Condition: 100% Brand New Material: Plastic Cable length: 300cm Measuring range: 0~14.00pH Measurement error: ±0.1pH Measurement accuracy: 0.01pH Connection: 300cm cable with BNC socket Operating temperature: 0℃- 80℃ ATC Size: Length: approx. 162mm / 6.4in Diameter: 14mm / 0.6in Package list: 1 * PH Electrode 1 * Instruction Manual .