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System Sensor Europe, like the majority of manufacturers, is experiencing longer product lead times due to component shortages. As we actively work to improve this situation, your satisfaction remains our main priority. View our current estimated lead times.

S200 Addressable Photoelectric Smoke/Thermal Detector

The Series 200 photo-thermal detector range delivers a consolidated, reliable, high-quality detector platform with digital communication, suitable for medium-to-large applications with simple installation requirements.

The 22051TE/TEI Photo Thermal detector uses thermal assistance to the core photoelectric smoke detector to give enhanced false alarm immunity and a faster response to a wide range of incipient fires. The plug-in unit combines two separate sensing elements that are managed by embedded software to act as a single unit. In areas where the normal daytime activities may potentially create unwanted alarms, the detector can be programmed to operate in a “heat only” mode, automatically reverting to full photo-thermal operation during unoccupied periods.


  • Two sensor multi-criteria fire detector incorporating photoelectric, and thermal sensing elements
  • Revolutionary chamber offering improved false alarm immunity
  • Includes Series 200 Advanced Digital Protocol
  • Available with or without single pole short circuit isolation with status control through the Series 200 Advanced Protocol (22051TE without isolator / 22051TEI with isolator)
  • EN54 (2000) Part 5-7
  • Tri-colour LED offering red, green and amber colours providing 360° visibility
  • Rotary decade address switches
  • Pure white colour to compliment modern buildings
  • 100% mechanical and electrical backwards compatibility
  • -30°C to +80°C operating temperature range
  • 10% to 93% relative humidity
  • Compatible bases: B500Series