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MLX90614 Infrared Thermometer Module (10° FOV)

Vendor's Description: 

The MLX90614 Infrared Thermometer Module is an intelligent non-contact temperature sensor with a 10° field of view and a serial interface for easy connection to host microcontrollers. The MLX90614 sensor is designed for non-contact temperature measurements of objects placed within the sensor’s cone of detection. The sensor is comprised of an integrated ASIC and infrared sensitive thermopile detector. The sensor communicates with an SX20AC/SS-G coprocessor over a digital SMBus, which Parallax has programmed to simplify an otherwise fairly complex communication protocol.


  • Outputs continuous data flow with an active alarm running in background
  • 16-bit digital temperature output data, ranging from -70°C to 380°C
  • Auto-baud detection (2400, 4800, 9600, 19.2K, 38.4K) for microcontroller-to-MLX90614 communications
  • SIP module format fits easily in breadboards or through-hold prototype areas
  • Multiple modules can be connected from a single I/O processor pin for serial data flow
  • Module can act as a stand alone sensor for alarming control
  • Sleep setting for low power consumption
  • Starts up active without pre-programming using preset writeable defaults
  • 10° Field Of View (90° FOV version available)

Example Applications:

  • Sensing and measuring surface temperatures without surface contact
  • Alarming alert for over temperature conditions
  • Temperature sensing element for residential, commercial and industrial building air conditioning
  • Industrial temperature control of moving parts such as die protection
  • Human or animal presence detection
  • Movement detection
  • Multiple zone temperature control – up to 100 sensors can be read via common 2 wires
  • Thermal relay and alert
  • Body temperature measurement

Key Specifications:

  • Power requirements: 5 VDC @ 40 mA (15 mA in sleep mode)
  • Communication: Asynchronous serial @ 2400, 4800, 9600, 19.2K, 38.4K baud on single I/O pin
  • Dimensions: 0.26" x 0.54" x 1.59" (6.5 mm x 13.8 mm x 40.4 mm)
  • Operating temp range: 32°F to 158°F (0°C to 70°C)
Parallax Inc.

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That's sorta what I''m looking to do with them.  Keep an eye on the Parallax site as these may go on sale at some point as part of their "Deal-A-Day."
uhm but what's the range of detection ? how close must an object be ?