Features [BNC Interface] With a user friendly BNC interface, the PH electrode probe can be quickly and easily connected, facilitating seamless operation. [Unique Design] Utilizing composite electrode technology, this probe offers an extended electrode lifespan while improving performance stability and reliability. [Convenient Charging] Designed with a rechargeable battery, the PH probe allows for quick and convenient battery replacement, extending the overall usage time. [Reliable Performance] With a response time of ≤5S and a stable time of ≤60S, this PH electrode probe provides reliable and accurate results with low power consumption. [Versatile Application] Suitable for various fields including laboratories, schools, workshops, and more, meeting PH testing requirements in different environments. Specification: Item Type: PH Electrode Probe Material: ABS Heating Voltage: 5±0.2V (AC DC) Working Current: 5±10mA Detection Concentration Range: PH0-14 Temperature Detection Range: 0-80℃ Response Time: ≤5S Stable Time: ≤60S Power Consumption: ≤0.5W Working Temperature: -10℃ to 50℃ (nominal temperature 20℃) Working Humidity: 95% RH (nominal humidity 65% RH) Service Life: 3 years Output: Analog voltage signal output Preparation Before Use: 1. Gently remove the protective bottle from the top of the electrode and store it for future use. 2. Clean the white deposited salt on the outside of the electrode with deionized water. 3. To maintain an appropriate penetration rate, the liquid level inside the tube should not exceed the end of the spiral glass tube, and should be at least 1 inch (2.5 cm) above the sample liquid level. The electrode ball end should be completely placed in the tested liquid when in use. Allow the bulb to come into full contact with the liquid to be tested, resulting in an ion response effect. 4. Gently shake the electrode (like shaking a thermometer) to remove any bubbles in the electrode.  Package List: 1 x PH Electrode Probe 1 x PH Solution Package List 1 x PH Electrode Probe 1 x PH Solution