• Standard or DIN mountable versions
  • Interface supports up to 8 individually addressable sensor heads
  • User configurable analog outputs (0/4-20mA, 0-5/10V, type J, K, R or S t/c)
  • USB 2.0 and RS485 digital interfaces
  • Intuitive user interface with high resolution LCD display for easy set-up
  • Full range of features
  • IP65 (NEMA 4) enclosure (standard enclosure)


The Raytek MI3 infrared thermometer is a two-piece system with a miniature sensing head and separate communications electronics. Designed for a wide range of applications, the MI3 is accurate, rugged, affordable, and easy-to-install and operate. With the MI3, precision infrared temperature measurement is now an economical alternative.

The Raytek MI3 electronics modules include an innovative multiple sensing head interface supports up to 8 individually addressable heads per communication module which reduces overall cost while simplifying installation and troubleshooting. The modules are available in either a standard cast metal enclosure or an innovative multi-channel DIN mountable enclosure. The standard enclosure includes USB 2.0 communications and a choice of scalable 0/4 to 20 mA and 0 to 5/10 VDC analog outputs, or Type J, K, R or S thermocouple outputs, as well as an optional RS485 network interface. The DIN mountable version includes both USB 2.0 and RS485 communications.

The Raytek MI3 electronics modules control all features of the sensing head. Standard features include adjustable Emissivity, Peak Hold, Valley Hold, and Averaging functions. All sensor parameters are easily adjustable on the built-in user interface keypad, or remotely with the DataTemp Multidrop software via the built-in USB interface. Advanced features further extend the power of the MI3 and include user configurable alarm output, digital "recipe" table inputs that can be easily interfaced to an external control system, an external reset input for signal processing, and external inputs for analog emissivity adjustment or reflected energy compensation.

The Raytek MI3 electronics modules ship complete with software support CD with DataTemp Multidrop software and user manual.


Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

Air Purge

Mounting Bracket

Viewing Windows/Protection


Please consider these optional accessories.

In Stock

Part Number Price Available
$269.00 3 in stock

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