This product is an integrated temperature and humidity sensor with calibrated digital signal output. It uses a polymer hygroscopic resistor as the sensing elements and is converted into a digital signal output through acquisition and processing by the microcontroller. It has long-term stability, high reliability and accuracy. It has the characteristics of high and low power consumption and is not affected by interference from power supply noise and voltage fluctuations. It is widely used in household appliances such as humidifiers, dehumidifiers, air purifiers, air fans, and central air conditioners. digital output, single bus protocol Low power consumption Relative humidity measurement range of 20% to 95% Universal 2.54mm connection terminal Colour:Blue Material:Plastic Package Contents: 10 * sensor 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.