ITEM NAME:Dht22 Single-Bus Digital Temperature And Humidity Sensor Module Electronic B4H2 Dht22 Single-Bus Digital Temperature And Humidity Sensor Module Electronic B4H2 working voltage: 3 V-5.5 V The sensor models: the separate AM2302 temperature and humidity sensor Signal output form: digital signal Measuring accuracy: 0.5 Celsius The humidity measuring range: 0-100% RH Measurement accuracy: 2% RH with fixed screw holes, convenient installation and fixation. Diameter of 2.6mm colour:White Material:plastic size:28.2*13.1*10mm Package Contents: 1 * DHT22 Temperature Humidity Module 3*cable