The YY-MDA is a single channel digital infrared temperature thermopile sensor that facilitates ease of non- contact temperature measurement integration into numerous applications. Housed in a small TO-5 package with digital interface. the sensor integrates thermopile sensor, amplifier, A/D, DSP, MUX and communication protocol. The YY-MDA is factory calibrated in wide temperature ranges: 40~85°C for the ambient temperature and - 20~300 °C for the object temperature. The measured temperature value is the average temperature of all objects in the Field of View of the sensor. The YY-MDA offers a standard accuracy of士2% around room temperatures. The digital platform supports easy integration. lts low power budget makes it ideal for battery powered applications, including household electrical appliances, environmental monitoring, HVAC, smart home/building control and IOT.