Output signal range: 0-2.3VPower supply voltage: 3.3- 5.0VTDS measurement range: 0-1000ppmWorking current: 3-6mATDS measurement accuracy: ±5%F.S. (25℃)TDS probe interface: 2Pin XH-2.54Temperature sensor interface: 3Pin XH-2.54Signal output: 0-2.3V analog signal output, compatible with 5V and 3.3V control systemsExcitation source is AC signal, effectively preventing probe polarizationWaterproof: Waterproof probe can be immersed in water for long-term measurementTDS probe parameters: TDS probe is suitable for 2 points of PE pipePin description:The module is connected to the TDS probe through the 2PinXH-2.54 connector, and the DS18B20 temperature sensor interface is extended to facilitate software temperature compensation design.VCC: supply voltage+GND: supply voltage-T1: Temperature sensor DS18B20 signal output port (temperature compensation can be performed through software)AO: Analog signal output (output voltage range 0-2.3V)+:Temperature sensor power supply+T: Temperature sensor signal line-: Temperature sensor power supply-1: TDS probe lead 12: TDS probe lead 2Colour:BlueMaterial:PCBPackage Contents:1x TDS sensor moduleOnly 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.