| Specification | Details |
|---|---|
| Temperature Range | –70 °C to +380 °C (–94 °F to +716 °F) |
| Accuracy | ±1 °C (±1.8 °F) + 1% of reading (at 23 °C / 73.4 °F ambient) |
| Resolution | 0.1 °C (0.1 °F) |
| Laser Pointer | Class 2, < 1 mW visible red laser for targeting |
| Distance-to-Spot Ratio | 5.7:1 (e.g., 57 mm spot at 325 mm distance) |
| Emissivity | Adjustable — 7 presets, custom entry, or match to reference temperature |
| Response Time | < 500 microseconds (95% of final value) |
| Spectral Response | 2 – 14 μm infrared wavelength |
PosiTector® IRT
Contactless Surface Temperature Detection with Precision
The PosiTector IRT is a high-performance infrared (IR) thermometer designed for accurate, non-contact surface temperature measurements. Featuring a button-activated laser pointer and a 5.7:1 distance-to-spot ratio, this tool lets you measure broad or remote areas from a safe distance—ideal for hot, moving, or delicate surfaces where contact sensors are impractical.
Whether you’re inspecting painted steel, monitoring curing coatings, or verifying temperature across large structures, the IRT delivers fast, reliable readings.
Supplied in the UK by DFT Instruments, every IRT comes with UKAS/NIST-traceable calibration, local technical support, and speedy recalibration services.
Features
- Button-activated laser pointer for accurate targeting
- Selectable emissivity values – choose from 7 preset material options, set a custom emissivity value, or adjust to a known temperature
- Statistics Scan mode – continually displays/updates average, standard deviation, min/max surface temperature and number of readings while measuring one reading per second
- Certificate of Calibration showing traceability to NIST included (Long Form)
- 5.7:1 distance to spot ratio – ideal for measuring large areas
- Smart Trend indicators identify rising, falling or stable readings
Why Temperature Testing Matters
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Safe Non-Contact Measurement
Keeps your device—and hands—safe from hot surfaces or moving parts without wearing the sensor. -
Speed Across Surfaces
The wide field of view and laser guidance make it fast and efficient for scanning large areas. -
Versatile Temperature Applications
Useful in coatings, machinery, storage environments, HVAC systems, and more. -
Essential for Process Control
Temperature is key to curing, drying, or adhesion. Use the IRT to verify pre-application surface readiness. -
Calculated Precision
Emissivity can be adjusted for different materials, ensuring accurate readings across various substrates.
Why Choose DFT?
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UK Calibration & Support
Each unit arrives with a long-form certificate traceable to national standards. DFT provides fast recalibration and lifetime support. -
Local Expertise
We guide you on emissivity settings, how to track temperature trends, and how to integrate data into your process controls—right here in the UK. -
Genuine DeFelsko Equipment
UK warranty, authorized parts, and full product lineage assurance. -
Training & Resources
Access manuals, video tutorials, and direct customer care to maximize your investment.
Features & Benefits
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Instant Readings at a Glance
Surface temperature updates in real time with laser pointer for precise measurement targeting. -
Durable Build
IP65-rated, weather-, solvent-, and dust-resistant, with a futuristic rubber holster for impact safety. -
Smart Interface
2.8″ impact-resistant color touchscreen, enhanced keypad, and on-gage help simplify navigation. -
Flexible Emissivity Control
Choose from 7 presets or enter custom values—or match readings to a known reference temperature. -
Dynamic Data Reporting
Statistics Scan Mode shows live average, min/max, and standard deviation at 1 reading/sec. -
Connectivity Options
Export via USB, Wi-Fi, or Bluetooth to PosiSoft Desktop, App, or Cloud. The IRT integrates into PosiTector bodies that support multiple probe types—turning one device into a multipurpose inspection tool.
Technical Specifications
Model Comparison: Standard vs Advanced IRT
| Feature | Standard Model (IRT1) | Advanced Model (IRT3) |
|---|---|---|
| Data Storage | 1,000 readings per probe | 250,000 readings across up to 1,000 batches |
| On-Gage Features | Basic statistics, numeric display | Trend charts, touchscreen keyboard, batch annotation |
| Connectivity | USB only | Adds Wi-Fi (PosiSoft.net sync) & Bluetooth 4.0 |
| Integration | Standard exporting | Supports drones, ROVs, BLE API, programmable integration |
FAQ’s
What does the PosiTector IRT measure?
It measures surface temperature from a distance using infrared radiation—no contact points needed.
What is the significance of the 5.7:1 distance-to-spot ratio (D:S)?
This ratio defines the field of measurement. For example, at 85 cm distance, the spot measured is 15 cm—providing an averaged reading over that area. Great for surface scanning.
How does emissivity affect accuracy?
Emissivity defines how a material emits infrared energy. The IRT allows selection from 7 presets, custom input, or adjustment using a known temperature reference for accurate readings.
Can I use the IRT on shiny or blasted metal surfaces?
Yes—but you must adjust emissivity, or measure over transferred paint or tape for accuracy. A quick surface check with a contact probe helps set emissivity.
Standard vs Advanced models—what are the differences?
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Standard: 1,000 readings, USB
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Advanced: 250,000 readings, live graphing, Wi-Fi, Bluetooth, batch annotation
Can I capture screen and store images?
Yes. The IRT allows you to capture screen data for record-keeping and later review.
Is it built for tough environments?
Yes—IP65 sealing, shock-absorbing construction, and a durable holster make it robust enough for harsh industrial use.
Do I need calibration?
Yes. Every unit arrives with a calibration certificate. Annual recalibration is recommended. DFT facilitates fast UK turnaround servicing.
Still need help?
If you experience an issue, check our troubleshooting guide or contact our support team directly. As a DeFelsko Authorised Service Centre (DASC), DFT Instruments provides calibration, repair, and technical assistance locally in the UK.
Find out more about the PosiTector IRT and all the features that come with it
Kit Contents:
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PosiTector IRT probe with IR sensor
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Protective rubber holster with belt clip
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Wrist strap, 3 × AAA batteries
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Nylon carrying case with lens shield
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USB cable
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Long-form Calibration Certificate (traceable)
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2 year warranty
Need precise, non-contact surface temperature readings you can trust? Choose the PosiTector IRT Infrared Thermometer—now available with UKAS-calibrated accuracy and expert support from DFT Instruments.
📞 To enquire about this product, contact our team today on: 01442 879494 or Complete the form.