Feature:1. [MAIN PURPOSE] PH value detect sensor module and PH waterproof digital probe kit, mainly used for PH value monitoring and control.2. [APPLICABLE USAGES] BNC connector fits most PH meters and controllers, widely used in aquariums, hydroponics, laboratories, etc.3. [WIDE USE RANGE] The detectable concentration range is PH014, which makes the PH value sensor module have a wider application range.4. [HIGH EFFICIENCY] The response time of the sensor sensor is 5S, the stabilization time is 60S, efficient and convenient in operation.5. [WITH WATERPROOF PROBE] Equipped with digital sensor probe, has good waterproof effect, with dual temperature compensation function.Specification:Item Type: PH Detection SensorWorking Current: 5-10mADetectable Concentration Range: PH0-14Detection Temperature Range: 0-100Response Time: 5SStability Time: 60SComponent Power Consumption: 0.5WOperating Temperature: -10~50 (nominal temperature 20)Working Humidity: 95%RH (nominal humidity 65%RH)Terminal: BNC Connector.Package List:1 x PH Value Sensor Module1 x Digital Probe Note:1. Probe cannot be tested continuously for a long time2. If you are using a Particle product like Photon or Argon, be aware of an error. It's a hardware issue with the analog port fluctuating voltage, enough to fluctuate your ph by 0.7 or more at these low voltage readings. To fix this, you'll need to add a 0.1uF capacitor between the analog port you're using and ground.3. If you want to test PH value, you need to purchase PH test liquid separately, without test liquid you can only measure the temperature.