For PH electrode probe BNC: The PH electrode has a cylinder that can be directly connected to the PH meter, controller, or input terminal of any PH device with BNC input terminal. The PH electrode detector is accurate and reliable, providing almost instantaneous readings. BNC connectors are suitable for most PH tables and controllers. Suitable for all kinds of applications: aquariums, pools, laboratories, etc. Features: Ph0-14 value detection sensor module Heating voltage: 5 0.2V (AC direct current) Operating current: 5-10mA Detectable concentration range: PH0-14 Test temperature range: 0-80 C Response time: 5S Settlement time: 60S Component power: 0.5W Operating temperature: -10-50 C (Rated temperature: 20C) Humidity: 95% RH (rated humidity: 65% RH) Output: Analog voltage signal output With 4 M3 mounting holes Material: Plastic + Metal colour: As shown Package Contents: 1 x Liquid PH0-14 Value Detect Test Sensor Module 1 x PH Electrode Probe Hydroponic Sensor BNC Interface Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.