Low Cost Micro UIRT/C Self Powered K Type Infrared Thermocouple

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Low Cost Micro UIRT/C Series of Self Powered K Type Infrared Thermocouples

Low Cost Micro UIRT/C Series of Self Powered K Type Infrared Thermocouples

Regular price $140.00 Sale SKU:IR-EX-UIRT/C-K-440F/220C
1 In stock* Ships in 5 days, if NOT in stock
* ships same or next day

  • Small Size
  • Most Reliable Non-Contact Temperature Sensor on Earth
  • Self-Powered
  • Intrinsically Safe
  • Repeatability 0.02°F (0.01°C)
  • Interchangeability +/-1%
  • Resolution 0.0003°C (approx)
  • Designed for OEM Use

Self powered micro IRT/C's are the most reliable non-contact temperature sensors in the market place. There are no active electronics so these passive thermocouple sensors can not fail.

Patented technology, the principle of operation of these sensors are calibrated to match conventional thermocouples at a specific temperature. By adjusting the calibration setting (c) of the IRT/C to equal the Seebeck coefficient (a), the signal output (mVout) will be within 2% linear to match the conventional thermocouple at a temperature close to the calibration point. As a result, when the Exergen IRT/C is wired into a conventional t/c input device, the target temperature (Tt) displayed will be the same as the surface (Ts).

IRt/c’s are pre-calibrated at the factory  for typical target material emissive properties, but actual emissivities may differ. The accuracies specified assume that the precalibrated value is correct for your installation, or that the system has been calibrated at a single point for the application.

Target Temperature Variation Error(greater of)
0°F (0°C) 0% or 0.02°F (0.01°C)
±5°F (± 3°C) ± 0.2% or 0.5°F (0.3°C) 
±10°F (± 6°C) ± 0.4% or 1.0°F (0.6°C) 
±20°F (± 12°C)  ± 1% or 2°F (1°C) 
±40°F (± 24°C) ± 2% or 4°F (2°C)
±75°F (± 42°C) ± 5% or 8°F (5°C) approx.
±180°F (± 100°C)  > 5% or 8°F (5°C) 


 To Order the models below scroll to the top of the page and choose the desired model from the "Models" drop down menu, then ADD TO CART
IR-EX-UIRT/C-K-440F/220CIn Stock 320-500°F, K thermocouple output
IR-EX-UIRT/C-K-340F/170C 280-370°F, K thermocouple output
IR-EX-UIRT/C-K-280F/140CIn Stock 240-330°F, K thermocouple output
IR-EX-UIRT/C-K-240F/120CIn Stock 180-250°F, K thermocouple output
IR-EX-UIRT/C-K-180F/90CIn Stock 140-220°F, K thermocouple output
IR-EX-UIRT/C-K-140F/60CIn Stock 70-190°F, K thermocouple output
IR-EX-UIRT/C-K-80F/27C 32-120°F, K thermocouple output
IR-EX-UIRT/C-K-98.6F/37CIn Stock Human body range, K thermocouple output


 Down loads
UIRT/C Data Sheet


Sensing Range: 0 to 975°F(-18 to 524C°) with linearization at readout
Ambient Temperature: -40 to 185F (-40 to 85C)
Minimum Spot Size: 0.1 (3 mm)
Spectral Response: 5.5 to 20μm
Output: K Type Thermocouple
Impedance: 17-45 KOhms, varies depending on temperature range
Emissivity: .90
Response Time: 50 millisecond time constant (typical)
Interchangeability: 1% to factory calibration conditions
Cable Assembly: 3 feet of unshielded, duplex insulated, type K, 24 AWC, PFA jacket rated to 500°F (260°C)
Housing: Stainless steel
Humidity: Non-condensing
Power: None, self powered
Sealed: Hermetically sealed, exceeds NEMA 4X, IP67
Weight: 1 oz. (30 grams) approximately
Dimensions: 0.25" (6.3 mm) Diameter x 1.0" (25.4 mm)
Input Device Compatibility: It is recommended to use input devices with less than 1nA of leakage current to minimize offsets and sensor break protection should be set to 40kohm maximum

FIELD of VIEW: 1:2 (110°) approximately.

uIRtc Field of View

 Since the outbreak of the Covid-19 pandemic, we have received a lot of interest in the use of our infrared temperature sensors for body temperature measurement.  These sensors are designed for industrial and laboratory surface temperature measurement.  They are not designed or certified for body temperature measurement or for medical use. Because of this IOThrifty does not warranty or guarantee their use in body temperature measurement applications

For measuring body temperature IOThrifty does offer these products: