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NC Non-Contact Sensors F-Type

The Semitec Non Contact (NC) sensor is a new concept in measuring infrared heat for temperature control of office automation products, and other products with rotating motors.

Utilising micro FT thermistor technology, Semitec have developed a sensor which can be easily installed, is self-compensating and can withstand more aggressive environments than conventional infra-red sensors.

The sensor assembly consists of two high-precision thermistors. One detects IR radiation emitted from an object, and the other measures the ambient temperature for compensation. By using the temperature differential between the two measurement outputs the target temperature can be calculated


  • High resistance to dust
  • High heat resistance – operating temperature range is from -10°C to 150°C., measuring temperature from -20°C to 260°C.
  • Resistant to electrical noise
  • Simple to use


  • Fuser rollers in laser printers, fax machines and photo-copiers,
  • Rotating motor parts particularly in automotive applications
  • Temperature measurement of drugs, chemicals and in high pressure environments
NC_FP Non-Contact Sensor F-Type Drawing