The Raytek XR infrared temperature sensors are designed for continuous temperature monitoring in a broad range of manufacturing processes. The XR is a rugged, NEMA 4 sealed single-piece system with the flexibility to handle nearly any application. Multiple extended temperature ranges, precision temperature resolution, RS-485 output and a flexible electronic platform create a single sensor that solves the most challenging application. Optional laser sighting and high-resolution optics provides the solution for either small targets or long sight-tubes. An intuitive user interface reduces setup time and adds powerful trouble-shooting capabilities.

  • Flexible user defined analog output
  • Multiple temperature ranges
  • Local User-interface for sensor programming
  • User-selectable 0/4-20 mA, 0-5 V, J or K thermocouple output
  • User-scalable 0/4-20 mA or 0-5 V output
  • Choice of field wiring or quick connector wiring option
  • Optional laser sighting and high  resolution optics
  • Optional stainless steel housing
  • Simultaneous analog and digital outputs
  • Field Calibration software

Measurement Specifications


         Spectral Response

              Temperature Range

LT (Low Temp)   

LTHSF (Low Temp)

MTB (Medium Temp)

G5 (Glass)    

P7 (Plastics) 

8 to 14 μm

8 to 14 μm

3.9 μm

5.0 μm 

7.9 μm  

-40°C to 600°C (-40°F to 1112°F)

-40°C to 600°C (-40°F to 1112°F)

250°C to 1200°C (482°F to 2190°F)

250°C to 1650°C (482°F to 3002°F)

10°C to 350°C (50°F to 662°F)


 Optical Resolution

LT (Low Temp)

LTHSF (Low Temp) 

MTB (Medium Temp)

G5 (Glass)  

P7 (Plastics)   







 ±1% of measured value or ±1°C (2°F),


LT**, MT, G5 & P7***


±0.5% of measured value or ±0.5°C (1.0°F),



0.5°C (1.0°F) for all models except P7;

1.0°C (0.2°F) P7 only

Response Time (95%)   

150 mSec


Adjustable; 0.10 to 1.00 for all models

Signal Processing   

ºC/ºF, Advanced Peak/Valley Hold, Averaging,

Ambient temperature compensation

Sensor Construction    

Anodized Aluminum or Stainless Steel

* Typical optical resolution

** Accuracy measured on target temperatures > 25ºC (ºF) @ ambient = 23ºC (77ºF)

*** P7 accuracy @ temperatures > 95ºC (203ºF)

Electrical Specifications:



4-20 mA, 0-20mA, 0-5V

J type or K type thermocouple*


Two-way RS485 digital output


Opto-coupled contact closure

Power Supply    

 24 VDC, 100mA, ±20%

 * Type J and K t/c ouputs available only with terminal connector

Sensor Specifications

Environmental Rating    

NEMA-4 (IEC529, IP65)*

Ambient Temperature Range

With air cooling

With water cooling 

With ThermoJacket 

0°C to 70°C (32°F to 160°F)

up to 120°C (up to 250°F)

up to 175°C (up to 350°F)

up to 315°C (up to 600°F)

Storage Temperature  

-40°C to 85°C (-40°F to 185°F)


Relative Humidity        

10 to 95%, non-condensing


IEC 68-2-27 (MIL STD 810D)

(50g’s, 11 mSec, any axis)


IEC 68-2-6 (MIL STD 810D)

(3 g’s, 11–200 Hz, any axis)



With cooling jacket 

192 mm L x 42 mm diameter

(7.6 L in x 1.7 in diameter)

192 mm L x 63 mm diameter

(7.6 L in x 2.5 in diameter)


With cooling jacket

0.585 kg (1.3 lbs)

0.675 kg (1.5 lbs)

*IP65 required on standard XR models using the 12-pin connector.


  • Cement
  • Steel
  • Power
  • Pulp & Paper
  • Plastic

Fields marked with * are mandatory fields.


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