ITEM NAME:DC 5V Digital Temperature Relative Humidity Sensor DHT11 Module with Cable Product Description Description: DC 5V Digital Temperature Relative Humidity Sensor DHT11 Module Board with Cable DIY Kit Feature: Digital signal output. Data port with pull resistor. With 3mm fixing screw hole, convenient installation. Specification: Humidity measurement range: 20-90%RH Humidity measurement accuracy: Â ± 5%RH Temperature measurement range: 0-50℃ Temperature measurement accuracy: Â ±2℃ Working voltage: DC5V/3.3V Sensor type: DHT11 temperature and humidity sensor Working voltage: DC 5V Product size: 30mm*12mm*7mm/1.18*0.47*0.27'' Package size: 95mm*60mm*7mm/3.74*2.36*0.27'' Packing weight: 5g Wiring method: VCC: 3.3V/5V power supply positive pole GND:Â power negative pole DATA: MCU IO port Note: do not reverse the connection between VCC and GND, otherwise it will burn down. Please allow 1-3cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x Sensor DHT11 Module 1 x Cable.Sensor type: DHT11 temperature and humidity sensor. Included: 1 x Sensor DHT11 Module. GND: power negative pole. Data port with pull resistor. Digital signal output. DATA: MCU IO port. Due to the different display and different light, the picture may not show the actual color of the item.