Features 1、QUICKLY RESPONSE TIME: The sensor module has quickly response time, low power consumption, convenient use and long use time 2、TWO TRIMMERS: There are two trimmers on the circuit board. One is to achieve offset adjustment by removing the pH probe and shortening the BNC connector with a wire(closest to the BNC connector). Another trimmer is the upper threshold of the digital output pin 3、PCB DOUBLE SIDED BOARD: Using 1.6mm thick PCB double sided board, sturdy and durable, possess long service life 4、LONG RUNNING TIME: PH value detection module come with large heat dissipation area, stable operation and long running time 5、PH0-14 DETECTION CONCENTRATION RANGE: Detection concentration range from PH0-14, detection temperature range is 0-80℃, analog voltage signal output method Specification Item Type: PH Value Detection Module Material: PCB Purpose: Sensor module Heating Voltage: 5±0.2V (AC DC) Working Current: 5-10mA Detection Concentration Range: PH0-14 Detection Temperature Range: 0-80℃ Response Time: ≤5S Stability Time: ≤60S Component Power Consumption: ≤0.5W Working Temperature: -10~50℃ (nominal temperature 20℃) Working Humidity: 95%RH (nominal humidity 65%RH) Output Mode: Analog voltage signal output Package List 1 x PH Value Detection Module