1. IntroductionMLX90614 is a thermometer with IR non-contact. TO-39 uses metal packaging and integrate chip of IR sensing thermopile detector and special integrated chip of signal processing. It features small size, low-power consumption, high integration, high sensitivity, high reliability and compatible with SMBus interface. It can be utilized to measure environment temperature with high precision and non-contact, and detect dead zone, and industrial-temperature detecting and control, livestock detecting, motion detecting , terminal alarm and ect. 2. Performance parametersWorking voltage 3—5V Working temperature -40 — +125 Measuring temperature -70 — +380 Measuring resolution radio 0.02 Output I2C communication protocol