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Silver cylindrical sensor with threaded UNF 3/4-16 mount and cable

Raytek

Raytek RAYCMLTK3 Fixed IR Temperature Sensor 13:1 UNF 3/4"-16

SKU CH-K3TX-HT4S6

Fixed infrared sensor with 13:1 spot ratio, adjustable emissivity, IP65 rating and 10 ft cable measures -4 °F to 932 °F

  • TypeEnvironmental & Mechanical
  • Fixed mount design enables continuous monitoring
  • 13:1 distance-to-spot ratio targets small areas from distance
  • Adjustable emissivity 0.10 to 1.10 matches diverse surfaces
  • IP65 and NEMA 4 ratings protect against dust and water
  • Measures -4 °F to 932 °F for wide application range

Fixed IR Sensor 13:1 UNF 3/4"-16

The Raytek RAYCMLTK3 is a fixed-mount infrared temperature sensor built for industrial process monitoring. It suits maintenance engineers and automation integrators who need non-contact measurement in harsh environments. The IP65 and NEMA 4 rated enclosure protects against dust and water ingress. A 10 ft cable provides flexible routing to control cabinets.

Measurement range -4 °F to 932 °F with 13:1 optics

The sensor measures from -4 °F up to 932 °F with a distance-to-spot ratio of 13:1, giving a 1-inch spot at 13 inches distance. Emissivity adjusts from 0.10 to 1.10 to match different surface materials. Maximum ambient operating temperature is 160 °F, limiting use near extreme heat sources without additional cooling. The 100 ohm impedance output interfaces with standard process inputs.

Replaces contact probes in moving

This unit upgrades from thermocouples or RTDs where physical contact is impractical, unsafe, or causes product contamination. The jump is worth it for continuous monitoring of conveyors, rollers, or high-voltage equipment. It is not suited for applications requiring wider temperature spans, faster response times, or wireless data transmission. The UNF 3/4"-16 thread requires a matching mounting port.

Highlights

  • Fixed mount design enables continuous monitoring
  • 13:1 distance-to-spot ratio targets small areas from distance
  • Adjustable emissivity 0.10 to 1.10 matches diverse surfaces
  • IP65 and NEMA 4 ratings protect against dust and water
  • Measures -4 °F to 932 °F for wide application range

Specifications

BrandRAYTEK
TypeEnvironmental & Mechanical

Questions about this item

Will the 3/4"-16 UNF thread mount directly into my existing process port?

Yes, the sensor uses a 3/4"-16 UNF thread type for direct mounting into compatible ports.

How can I verify the sensor is transmitting a valid signal after installation?

Measure the output impedance at the controller; it should read 100 ohm when the sensor is powered and connected.

Does the 10 ft cable include a connector or do I need to supply my own termination?

The 10 ft cable is supplied attached to the sensor; termination connectors are not included and must be sourced separately.

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