Portable Infrared Thermometer IRN

IRN Series

The IRN is a high performance portable pyrometer with superior optical resolution up to 300:1 and spot sizes down to 1 mm. Its wide model range covers (-)30°C to 1600°C with dual laser sighting, K-type thermocouple input and USB output, giving technicians precise non-contact spot measurement in a handheld tool.

Superior 300:1 optics
Spot sizes down to 1 mm
Non-contact spot measurement
Dual laser sighting
K-type input and USB output

Temperature range review

Model and optics selection

Spot size check

Emissivity guidance

Calibration support

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High performance portable pyrometer with models covering (-)30°C to 1600°C
Superior optical resolution up to 300:1
Spot sizes down to 1 mm for small targets
Fast 5 ms response time (1M/2M/3M models)
Dual laser sighting for accurate targeting
Visual and acoustic HIGH and LOW alarms
4-digit backlit LCD display
Thermocouple K-type input for contact measurement
Digital (Mini USB) output with software and 2,000-point data logger
3M models suitable for measuring metallic shiny surfaces
Non-contact spot measurement in a handheld body
Emissivity adjustable 0.10–1.00 in 0.01 increments

Portable spot temperature measurement
Aerospace and scientific research
Iron and steel metallurgy
Casting and forging
Industrial furnace measurement
Vacuum and single crystal furnace inspection
Metallic shiny surface measurement (3M)
Maintenance and diagnostic checks
Verifying other online instruments
Handheld measurement of small or distant targets

Model: IRN Series (LT / LR / 1M / 2M / 3M variants)
Product Type: High Performance Portable Infrared Pyrometer
Temperature Range: LTSF/LTCF (-)30°C–900°C; LRFF (-)30°C–1300°C; 1M 600°C–1600°C; 2M 300°C–1300°C; 3M 100°C–600°C
Spectral Response: LT/LR 8–14 µm; 1M 1 µm; 2M 1.6 µm; 3M 2.3 µm
D:S (Optical Resolution): up to 300:1 (LT 60:1/75:1; LR 120:1; 1M/2M 300:1; 3M 120:1/140:1)
Far Field: model specific (see optical diagram)
Accuracy: LT/LR ±1% of reading or ±1°C; 1M/2M/3M ±(0.5% of reading + 2°C), whichever is greater
Repeatability: LT/LR ±0.5% of reading or ±0.5°C; 1M/2M/3M ±(0.3% of reading + 1°C)
Response Time: LT/LR 300 ms; 1M/2M/3M 5 ms (95% signal)
Emissivity: 0.10–1.00, in 0.01 increments
Temperature Resolution: 0.1°C (1°C above 1000°C)
Sighting: Double laser sighting
Display: 4-digit backlit LCD
Digital Output: Mini USB with software
Input: Thermocouple Type K
Data Logger: 2,000 points
Laser: IEC Class 2 / FDA Class II (<1mW)
Alarms: High and Low, audio and visual
Power Supply: 9V alkaline battery (or from USB)
Battery Life: 10 hours (laser and backlight on)
Ambient Temperature: 0°C to 50°C
Storage Temperature: (-)20°C to 60°C, without battery
Relative Humidity: 10 to 95%, non-condensing
Dimensions: 163.5(L) × 207(H) × 70(W) mm
Weight: 470 g (battery included)
Tripod Mounting: 1/4" - 20 UNC

Comprehensive Services Using This Product

From installation to ongoing support, we’re with you every step of the way.

Calibration

Precise calibration ensuring measurement accuracy and compliance.

Industries Using This Product

Our solutions are trusted by top industries to drive growth and improve operations.

Cement

Precision measurement and control solutions for efficient cement production and quality control.

Metals

Advanced monitoring systems for efficient metal production, ensuring product consistency and safety.

Power

Optimizing power plant operations with real-time monitoring and predictive maintenance solutions.

Steel

Advanced monitoring systems for efficient steel production, ensuring product consistency and safety.

Glass

Advanced instrumentation to ensure precise control and quality in glass manufacturing.

What Customers Say About Us

Trusted Engineering Support

The team provided clear technical guidance and practical solutions. Execution was smooth and well coordinated throughout.

Mr. Vivek NairGeneral Manager – Operations, Cement Industry

Dependable Technical Partner

Their approach was systematic and aligned with our plant needs. Overall experience with product and service has been positive.

Ms. Kavita RaoSenior Manager – Maintenance, Steel Sector

Application-Focused Solutions

They understood our process conditions before recommending equipment. Support during installation was handled professionally.

Mr. Rohan MehtaProject Lead – Power Plant

Consistent Service Delivery

Product performance has been stable in regular operations. The support team responds in a timely manner.

Mr. Anil DeshmukhInstrumentation Head, Process Manufacturing

Insights & News

Ensuring Environmental Compliance with CEMS: A Step Ahead

Learn how Continuous Emission Monitoring Systems (CEMS) help industries stay compliant with environmental norms, providing real-time emission data, remote monitoring, and actionable insights for sustainable and responsible manufacturing.

How Predictive Maintenance is Transforming Industrial Efficiency

Discover how advanced monitoring tools like vibration and ultrasound solutions are helping industries move from reactive to predictive maintenance—reducing downtime, extending equipment life, and optimizing productivity across critical operations.

Clients Who Have Transformed Their Operations with This Product

Frequently Asked Questions About This Product

A high performance portable pyrometer is a handheld non-contact instrument with high optical resolution for precise spot measurement. The IRN offers up to 300:1 optics and 1 mm spot sizes across a (-)30°C to 1600°C model range.

The IRN offers superior optical resolution up to 300:1, with spot sizes down to 1 mm, so it can measure small or distant targets accurately.

The IRN model range covers (-)30°C to 1600°C, split across LT, LR, 1M, 2M and 3M variants with different wavelengths.

Yes. The IRN has a K-type thermocouple input, so it can take contact readings in addition to non-contact infrared spot measurement.

Yes. The IRN has a 2,000-point data logger and a Mini USB digital output with software for downloading readings.

The 3M variant, at 2.3 µm, is suitable for measuring metallic shiny surfaces that longer-wavelength models read less accurately.

Users should check target temperature, model and wavelength, spot size at distance, emissivity and whether contact input is needed.

Download Resources

Portable Infrared Thermometer IRN

IRN Series

Still Confused What to Buy?

Need help deciding? Download resources to know more about the product.

Comprehensive Services Using This Product

Calibration

Industries Using This Product

Cement

Cement

Metals

Metals

Power

Power

Steel

Steel

Glass

Glass

What Customers Say About Us

Trusted Engineering Support

Dependable Technical Partner

Application-Focused Solutions

Consistent Service Delivery

Insights & News

Ensuring Environmental Compliance with CEMS: A Step Ahead

How Predictive Maintenance is Transforming Industrial Efficiency

Clients Who Have Transformed Their Operations with This Product

Frequently Asked Questions About This Product

What is a high performance portable pyrometer?

What optical resolution does the IRN offer?

What temperature range does the IRN cover?

Does the IRN support contact measurement?

Does the IRN store and output data?

Which IRN model suits shiny metal?

What should users check before selecting the IRN?

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