Features: Digital temperature and humidity sensor istemperature and humidity composite sensor with calibrated digital signal output. Each sensor calibrated in an extremely accurate humidity calibration room. Calibration coefficients are stored in OTP-memory in the form of programs, and these calibration coefficients should be called in the sensor during the processing of detection signals. It uses special digital module acquisition technology and temperature and humidity sensing technology to ensure the product has high reliability and excellent long-term stability. Single-wire serial interface makes system integration simple and fast. Ultra-small volume, extremely low power consumption and signal transmission distance of more than 20m make it the best choice for all kinds of applications and even the most demanding applications. The sensor includes a capacitive humidity sensor and an NTCtemperature sensor, and connected with a high-performance 8-bit single chip microcomputer. Therefore, this product has the advantages of excellent quality, super fast response, strong anti-interference ability and high cost performances. brand new and high quality Package Includes: 1 Set Temperature and Humidity Sensor Specifications: Material:ABS Size:Approx.37x15mm/1.45x0.59inches note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.