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  1. Infrared Thermometers
  2. Fixed Infrared Thermometers

Raytek MI3 Infrared Temperature Sensor

Miniature sensing heads for use with the Raytek MI3 electronics modules.

Raytek MI3 Infrared Temperature Sensor
Raytek MI3 Infrared Temperature Sensor
Starting at $452.00 Found a better price? Let us match.

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Manufactured
  • By Raytek
Includes
  • FREE Ground Shipping on orders of $1,000 or more
  • FREE Lifetime Tech Support
Availability
  • Some models in stock. View available part numbers.
Product Manual Product Specs
Questions?
Call 1-800-884-4967 or Email Us.
Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
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Overview

Features

  • Compatible with Raytek MI3 electronics modules
  • Temperature range:
  • LT: -40 to 600°C or 0 to 1000°C
    • G5: 250 to 1650°C
  • Spectral response:
    • LT: 8 to 14 microns
    • G5: 5 microns
  • Accuracy: ±1% of readings
  • Optical resolution: 2:1, 10:1 or 22:1
  • Emissivity: 0.100 to 1.000 (digitally adjustable in .001 increments)
  • Transmission: 0.100 to 1.000 (digitally adjustable in .001 increments)
  • Rugged stainless steel construction
  • ATEX and IECEx-proof for dust and gas atmospheres version available
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Description

The Raytek MI3 infrared thermometer is a two-piece system with 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 sensing heads are designed for an endless range of applications and feature a variety of sensing head options. Thanks to precision, high-resolution silicon optics, the MI3 sensors provide a range of optical resolutions including 2:1, 10:1 and 22:1. The MI3 sensing heads are also available in two versions. The LT version has a temperature range of -40 to 600°C or 0 to 1000°C and a spectral response of 8 to 14 microns. The LT also has a fast-response option for response times as fast as 20 mSec. The G5 version has a temperature range of 250 to 1650°C with a spectral response of 5 microns. The basic accuracy for both versions is ±1% of readings.

All sensor-operating parameters are easily accessed and configured through the standard user interface with large backlit LCD display, or with the powerful Raytek DataTemp® multidrop software via the USB 2.0 digital interface. Standard functions of the MI3 system include: adjustable emissivity, transmissivity, peak hold, valley hold and signal averaging; and configurable inputs for emissivity control, ambient background compensation and trigger/hold input.

The MI3's miniature size and low cost per measurement point make it ideal for installation at multiple points in your process. The 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 rugged stainless steel sensing head ensures reliable long term performance in the harshest industrial environments.

Raytek MI3 sensing heads ship complete with one mounting nut.

Documents

Spec Sheets

  • Raytek MI3 Infrared Temperature Sensor Datasheet PDF (1.3 MB)

Manuals

  • Raytek MI3 Infrared Temperature Sensor Manual PDF (8.2 MB)

Links

  • All possible part numbers

Accessories

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.

Raytek MI3 Electronics Modules
Raytek MI3 Electronics Modules

Electronics module with communications, output and LCD display for use with the Raytek MI3 sensor head.

Some Models in Stock
Starting at $269.00
Raytek MI Series Adjustable Mounting Bracket
Raytek MI Series Adjustable Mounting Bracket

Adjustable bracket for the Raytek MI3 and MI Series Sensors.

In Stock
$101.00
Raytek Ex-Power Supply
Raytek Ex-Power Supply

ATEX Ex power supply box, with 16.4ft (5m) long cable, that supports up to 2 intrinsically safe MI3 heads.

$2,236.00

Air Purge

Raytek MI series air purge jacket (no cooling)
Raytek MI series air purge jacket (no cooling)

Air purge jacket (no cooling) for Raytek Thermalert MID or GPM series.

Starting at $147.00
Raytek MI Series Air Hose
Raytek MI Series Air Hose

Air cooling & purging system with 2.8' (0.8m) air hose for MID or GPM series.

$758.00
Raytek MI series air cooling & purging system including 9.2' (2.8m) air hose
Raytek MI series air cooling & purging system including 9.2' (2.8m) air hose

Air cooling & purging system with 9.2' (2.8m) air hose for MID or GPM series.

In Stock
$921.00

Mounting Bracket

Raytek MI series extra mounting nuts
Raytek MI series extra mounting nuts

Raytek MI series extra mounting nuts.

$42.00
Raytek MI Series Fixed Mounting Bracket
Raytek MI Series Fixed Mounting Bracket

Fixed bracket for the Raytek Thermalert MID or GPM series.

$62.00

Viewing Windows/Protection

Raytek MI Series Zinc Sulfide Protective Window
Raytek MI Series Zinc Sulfide Protective Window

Raytek MI Series Zinc Sulfide Protective Window.

$135.00
Raytek MI Series Polymer Protective Window
Raytek MI Series Polymer Protective Window

Polymer Protective Window for Raytek MI3 Sensors .

$86.00

Accessories

Please consider these optional accessories.

Raytek XXXMIACRAJ Right Angle Mirror
Raytek XXXMIACRAJ Right Angle Mirror

Raytek MI series right angle mirror for use with air cooling and/or purging.

$209.00
Raytek XXXMIACRAJ1 Right Angle Mirror
Raytek XXXMIACRAJ1 Right Angle Mirror

Raytek MI series right angle mirror for use with air purging (no cooling).

$225.00
Raytek MI Series Close Focus Lens
Raytek MI Series Close Focus Lens

Close focus lens for Raytek MI3 sensors (10mm focus distance).

$86.00
Raytek MI3 & MI3M Series Interface Box
Raytek MI3 & MI3M Series Interface Box

Multi-channel sensor interface box for Raytek MI3 and MI3M Series instruments.

$652.00

Applications

Here's how some of our customers use this product...

Monitoring Road Temperature to Optimize the Application of Salt

The Background: A municipality wishes to measure pavement temperatures as a means of optimizing the application of salt to snowy and icy roads.

The Problem: The surface temperature of a snow- or ice-covered road determines the amount of salt needed. As temperatures go down, the amount of salt needed to melt a given quantity of ice increases significantly. Applying salt is expensive and it is important to optimize the amount used since under-salting creates public safety hazards while over-salting may have a negative environmental impact.

The Solution: Raytek MI3 Infrared Temperature Sensors mounted to the outside of the salt trucks provides accurate, real-time, non-contact measurement of pavement temperature while the truck is moving. The electronics module mounts conveniently inside the cab making is as easy as possible to tailor salt amounts to road conditions.

In Stock

Part Number Price Available
RAYMI310LTSCB3
Show Configuration
$486.00 4 in stock
RAYMI310LTF
Show Configuration
$611.00 1 in stock
RAYMI310LTS
Show Configuration
$452.00 1 in stock
RAYMI320LTS
Show Configuration
$618.00 1 in stock
Configuration for RAYMI310LTSCB3
Base Price:
$0.00
Ambient Temperature
120°C
Model
Range: -40 to 600°C, Spectral Range: 8-14µm, D:S=10:1; Response: 130ms (+$452.00)
Intrinsic Safety
Not Intrinsically Safe
Cable Length
3 meters (+$34.00)
Reconfigure
Configuration for RAYMI310LTF
Base Price:
$0.00
Ambient Temperature
120°C
Model
Range: 0 to 1000°C, Spectral Range: 8-14µm, D:S=10:1; Response: 20ms (+$611.00)
Intrinsic Safety
Not Intrinsically Safe
Cable Length
1 meter
Reconfigure
Configuration for RAYMI310LTS
Base Price:
$0.00
Ambient Temperature
120°C
Model
Range: -40 to 600°C, Spectral Range: 8-14µm, D:S=10:1; Response: 130ms (+$452.00)
Intrinsic Safety
Not Intrinsically Safe
Cable Length
1 meter
Reconfigure
Configuration for RAYMI320LTS
Base Price:
$0.00
Ambient Temperature
120°C
Model
Range: 0 to 1000°C, Spectral Range: 8-14µm, D:S=22:1; Response: 130ms (+$618.00)
Intrinsic Safety
Not Intrinsically Safe
Cable Length
1 meter
Reconfigure

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 12 weeks". Click here to select options

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Rhys D. headshot Rhys D.
Applications Engineer
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer

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Raytek MI3 Infrared Temperature Sensor
Raytek MI3 Infrared Temperature Sensor
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