CM: Compact Series CM

Compact Intergrated Thermometer

The Thermalert CM provides the advantages of infrared temperature measurement in a compact, low cost integrated sensor. The CM can easily replace traditional contact probes with a type J or K thermacouple output, or with a 0-5 volt output if your application is susceptible to noise or requires a longer cable run. The CM is designed to measure target temperatures ranging from -20 to 500°C. The CM's onboard electronics are protected by a rugged IP65 (NEMA-4) stainless steel housing.


  • Wide temperature range from -20 to 500°C
  • IP 65 (Nema-4) stainless steel electronics housing
  • 13:1 optics at 90% energy
  • 150 mSec (95%) response time
  • Powered by 12-24 VDC at 20mA
  • Scalable 0-5V, type J or K Output
  • Alarm Output
  • Sensor status/self diagnostic indicator LED
  • RS232 digital communications for sensor set-up and monitoring
  • Adjustable signal processing
  • Data Temp Multidrop software compatable
  • Accessories for air purging and lens protection

Measurement Specifications

Temperature Range -20 to 500°C
Spectral Response 8 to 18 microns
System Repeatability ±0.5% of measured value or ±2°C, whichever is greater
Temperature Resolution 0.1°C
Response Time 150 msec (95%)
Emissivity Adjustable 0.10 to 1.10
Transmissivity Adjustable 0.10 to 1.00

Electrical Specifications

Outputs Select when ordering
Model J Thermacouple output type "J"
Model K Thermocouple output type "K"
Model V Scaleable 0-5VDC output
Model V-I Scaleable 4-20mA output
Cable Length 1.0m standard, 3m optional
Power Supply 12-24VDC ± 20% 10mA

General Specifications

Environmental Rating NEMA-4 (IP65)
Ambient Temperature Range 0 to 70°C
Storage Temperature -30 to 85°C (-22 to 185°F)
Relative Humidity 10-95%, non-condensing



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