ITEM NAME:1X DHT11 Temperature and Relative Humidity Sensor Module for arduino〠ME - 100% brand new and high quality - DHT11 Temperature Sensor - This module can detect surrounding environment of the humidity and temperature - Precision and reliability with excellent long-term stability - Output form digital output - Built in fixed bolt hole for an easy installation - Connecting cables are included Hardware Specification - Humidity measurement range: 20%~90%RH - Humidity measurement error: +-5%RH - Temperature measurement range: 0~60 Cel. - Temperature measurement error: +-2Cel. - Working voltage :5 V.DHT11 Temperature Sensor. Hardware Specification.