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IR Thermometers

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If you are new to this, click here! What is radiation thermometer?

radiation thermometer measures temperature by detecting thermal radiation (infrared rays) from an object.
Compared to thermometers that use thermal conduction, such as thermocouples, it is possible to measure temperature non-contact and high-speed.
radiation thermometer?

If you're unsure how to choose! How to choose radiation thermometer

How to choose radiation thermometer (under construction)

References and Related Information

・ emissivity table
・FAQ radiation thermometer in general


Link to product type here
▶ General-purpose type/Installation type

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▶By purpose, portable, scanning, etc.

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Product Line

High temperature and high accuracy /Installed type

  • Infrared radiation thermometer IR-CZS
    Single color type for high temperatures

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    Models IR-CZS
    Measurement temperature range 450～3500℃
    Detecting element Si
    Wavelength 0.9μｍ
    Response time 3ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

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  • Infrared radiation thermometer IR-SAS
    For high temperatures

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    Models IR-SAS
    Measurement temperature range 600～2500℃
    Detecting element Si
    Wavelength 0.9μｍ
    Response time 2ms

    The IR-SA series is radiation thermometer with excellent environmental resistance that can withstand harsh on-site environments. With high accuracy and high-speed response, and four models available: low temperature, medium temperature, high temperature, and two-color, it is suitable for various process lines as well as a wide range of fields for non-contact temperature measurement.

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  • Fiber-type radiation thermometer IR-FAS
    Single color type for medium to high temperatures

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    Models IR-FAS
    Measurement temperature range 400～3000℃
    Detecting element Si
    Wavelength 0.9μｍ
    Response time 10ms

    The IR-FA series is a fiber transmission type radiation thermometer that transmits the measurement light (radiant energy) captured by a tiny light-collecting part the size of a little finger via fiber optics to detecting element housed in a small box-shaped main body.

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Medium temperature high accuracy /installed type

  • Infrared radiation thermometer IR-CZP
    Single color type for low and medium temperatures

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    Models IR-CZP
    Measurement temperature range 80～1400℃
    Detecting element InGaAs
    Wavelength 2μｍ
    Response time 3ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

    Learn more

  • Infrared radiation thermometer IR-CZI
    Single color type for medium temperature

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    Models IR-CZI
    Measurement temperature range 200～2000℃
    Detecting element InGaAs
    Wavelength 1.55μｍ
    Response time 3ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

    Learn more

  • Infrared radiation thermometer IR-SAI
    For medium temperature

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    Models IR-SAI
    Measurement temperature range 300～1600℃
    Detecting element InGaAs
    Wavelength 1.55μｍ
    Response time 2ms

    The IR-SA series is radiation thermometer with excellent environmental resistance that can withstand harsh on-site environments. With high accuracy and high-speed response, and four models available: low temperature, medium temperature, high temperature, and two-color, it is suitable for various process lines as well as a wide range of fields for non-contact temperature measurement.

    Learn more

  • Fiber-type radiation thermometer IR-FAI
    Single color type for medium to high temperatures

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    Models IR-FAI
    Measurement temperature range 150～1600℃
    Detecting element InGaAs
    Wavelength 1.55μｍ
    Response time 10ms

    The IR-FA series is a fiber transmission type radiation thermometer that transmits the measurement light (radiant energy) captured by a tiny light-collecting part the size of a little finger via fiber optics to detecting element housed in a small box-shaped main body.

    Learn more

Low to medium temperature/Installed type

  • Small infrared radiation thermometer IR-BZN
    high-speed Type

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    Models IR-BZN
    Measurement temperature range 0～500℃
    Detecting element InSb
    Wavelength 2～6.8μm
    Response time 1ms

    The IR-BZN series of small radiation thermometer has a high-speed response that can reliably detect temperature changes in equipment and production lines that require tracking. Because of its compact size, it does not take up much installation space and is suitable for incorporating into equipment.

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  • Infrared radiation thermometer IR-CZK
    Single-color type for low temperature and high-speed

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    Models IR-CZK
    Measurement temperature range 0～500℃
    Detecting element InSb
    Wavelength 3～5.5μｍ
    Response time 1ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

    Learn more

  • Fiber-optic radiation thermometer IR-FACR
    Single color type for low temperature

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    Models IR-FACR
    Measurement temperature range 70～800℃
    Detecting element Cooling system PbS
    Wavelength 2μｍ
    Response time 1s

    The IR-FA series is a fiber transmission type radiation thermometer that transmits the measurement light (radiant energy) captured by a tiny light-collecting part the size of a little finger via fiber optics to detecting element housed in a small box-shaped main body.

    Learn more

Low temperature wide area/Installed type

  • Small infrared radiation thermometer IR-BZP

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    Models IR-BZP
    Measurement temperature range 0～1000℃
    Detecting element Thermopile
    Wavelength 8～14μｍ
    Response time 15ms

    The IR-BZN series of small radiation thermometer has a high-speed response that can reliably detect temperature changes in equipment and production lines that require tracking. Because of its compact size, it does not take up much installation space and is suitable for incorporating into equipment.

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  • Infrared radiation thermometer IR-SAB
    For low temperatures

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    Models IR-SAB
    Measurement temperature range 0～1000℃
    Detecting element pyroelectric element
    Wavelength ８～14μｍ
    Response time 0.2s

    The IR-SA series is radiation thermometer with excellent environmental resistance that can withstand harsh on-site environments. With high accuracy and high-speed response, and four models available: low temperature, medium temperature, high temperature, and two-color, it is suitable for various process lines as well as a wide range of fields for non-contact temperature measurement.

    Learn more

  • Infrared radiation thermometer IR-CAB
    Low temperature and high accuracy

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    Models IR-CAB
    Measurement temperature range -50～1000℃
    Detecting element pyroelectric element
    Wavelength 8～13μｍ
    Response time 2s

    The IR-CA series is a stationary radiation thermometer with an integrated digital temperature display, parameter setting function, and external measurement value output on the main unit.
    Supports non-contact temperature measurement in a variety of fields.

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  • Small infrared radiation thermometer IR-BAT
    General purpose/ high-speed specifications

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    Models IR-BAT
    Measurement temperature range 0～600℃
    Detecting element Thermopile
    Wavelength 8～14μm
    Response time 0.5s 

    The IR-BA series is a relatively low-priced small radiation thermometer with emissivity compensation and analog output of measured values. Its compact card size does not take up much installation space and is convenient for incorporating into equipment.

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Two-color type/Installed type

  • Infrared radiation thermometer IR-CZQ
    Two-color high performance type

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    Models IR-CZQ
    Measurement temperature range 350～2000℃
    Detecting element Si/InGaAs/InGaAs
    Wavelength 0.9/1.35/1.55μm
    Response time 2 to 15 ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

    Learn more

  • Infrared radiation thermometer IR-CZH
    Two-color high-temperature high accuracy type

    Learn more
    Models IR-CZH
    Measurement temperature range 900～3500℃
    Detecting element Si/InGaAs
    Wavelength 0.9/1.55μm
    Response time 2 to 15 ms

    The IR-CZ series is a stationary radiation thermometer with an integrated digital temperature display and external measurement value output on the main unit.
    high accuracy in high temperature ranges is achieved by tracing from the metal-carbon eutectic fixed point.

    Learn more

  • Infrared radiation thermometer IR-SAH
    Two-tone

    Learn more
    Models IR-SAH
    Measurement temperature range 900～2500℃
    Detecting element Si/InGaAs
    Wavelength 0.9/1.55μm
    Response time 10ms

    The IR-SA series is radiation thermometer with excellent environmental resistance that can withstand harsh on-site environments. With high accuracy and high-speed response, and four models available: low temperature, medium temperature, high temperature, and two-color, it is suitable for various process lines as well as a wide range of fields for non-contact temperature measurement.

    Learn more

  • Fiber-type radiation thermometer IR-FAQ
    Two-tone

    Learn more
    Models IR-FAQ
    Measurement temperature range 300～3000℃
    Detecting elementInGaAs, Si (depending on models)
    Wavelength 0.85 to 1.55 μm (depending on models)
    Response time 40ms

    The IR-FA series is a fiber transmission type radiation thermometer that transmits the measurement light (radiant energy) captured by a tiny light-collecting part the size of a little finger via fiber optics to detecting element housed in a small box-shaped main body.

    Learn more

radiation thermometer by application

Explosion proof radiation thermometer (Japan Stadnards)

Portable radiation thermometer

Optical pyrometer

  • Digital optical pyrometer IR-URN

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    Models IR-URN
    Measurement temperature range 700～3500℃
    Wavelength 0.65μｍ

    The IR-URN measures temperature by adjusting current passing through the filament of the light bulb built into the main unit while observing it with the naked eye so that the color of the filament matches the color of the object to be measured.

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radiation thermometer

  • Scanning radiation thermometer IR-EA

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    Models IR-EA
    Measurement temperature range 100～1200℃
    Accuracy ratings 4℃ (below 400℃)/±1.0% (above 400℃)
    Detecting element Cooled InAsSb
    Scanning Speed 20Hz to 150Hz (variable)

    The IR-EA series is a scanning radiation thermometer can measure temperature distribution in one axis direction at 150Hz by scanning the optical axis with a rotation mirror. It comes standard with Ethernet and can be directly connected to a PLC to obtain temperature data directly on the PLC side.

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  • High temperature scanning radiation thermometer IR-NA

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    Models IR-NA
    Measurement temperature range 600～1400℃
    Detecting element CMOS linear image sensor
    Scanning Speed 80 to 150Hz (variable)

    The IR-NA series is a high-temperature scanning radiation thermometer equipped with a 4096-pixel Si linear element that can measure uniaxial temperature patterns 150 times per second. It comes standard with Ethernet and can be directly connected to a PLC to obtain temperature data directly on the PLC side.

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  • radiation thermometer for running wire IR-ESW

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    Models IR-ESW
    Measurement temperature range 350～1300℃
    Detecting element InGaAs, Si
    Scan Angle 10°
    Scan Line Diameter φ5mm or more,
    φ10mm or more

    The IR-ESW series is radiation thermometer can measure the temperature of wires without being affected by lack of view caused by the wire's vibration or changes in wire diameter. It scans field of view smaller than the wire diameter, extracts the peak temperature, and measures the temperature.

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  • radiation thermometer for Low Temperatures IR-ESC

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    Models IR-ESC
    Measurement temperature range 100～600℃
    Detecting element Cooled PbSe
    Scanning Speed 5Hz/10Hz
    response speed 0.5s

    The IR-ESC series is a low-temperature scanning radiation thermometer realizes low-cost measurement of temperature patterns in the width direction of moving or rotation objects, etc. The measurement range is a wide range from 100℃ to 600℃.

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  • IR-E Low Temperature Scanning radiation thermometer

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    Models IR-E
    Measurement temperature range 50～400℃
    Detecting element Cooled PbSe
    Scanning Speed 50Hz
    response speed 200μs/time

    The IR-E series is a low-temperature scanning radiation thermometer can measure temperature patterns in one axis direction by scanning the measurement position high-speed using a rotation six-sided mirror.

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