The turbidity sensor module converts the current signal output by the sensor into a voltage signal, and performs AD conversion data processing by the single chip microcomputer. The module has an analog and digital output interface. The analog quantity can be sampled by the microcontroller A/D converter to know the current water contamination. The digital quantity can be adjusted by the potentiometer on the module. When the turbidity reaches the set threshold, the D1 indicator will be illuminated, the sensor module output will change from high level to low level, and the microcontroller will monitor the level change. Determine whether the turbidity of the water exceeds the standard, thus alerting or linking other equipment. Parameter Performance: Operating voltage: 5.00V DC Working current: 40mA (MAX) Response time: <500ms Insulation resistance: 100MΩ (Min) Output mode: analog output: 0~4.5V; digital output: high/low level signal (can adjust the potentiometer to select the corresponding threshold) Color: Dark Gray Material: Plastic+Metal Package Contents: 1*Turbidity Sensor Kit 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.