UV IR2 HT Flame Detector

Product Overview

The Ultra-Violet, dual Infra-Red (UV/IR²) Flame Detector is designed to protect areas where open fires may be expected and detects most flames from hydrocarbon fires with 4.3um emissions through to invisible fires such as hydrogen.

The UV/IR Flame Detector is sensitive to flickering, low frequency (1-15Hz) infra-red radiation along with ultra-violet emitted by flames during combustion.

This detector has a UV sensor and two IR sensors which respond to different wavelengths of both the ultra-violet and the infra-red spectrum.

The signals from these sensors are processed by the detector and checked for characteristics of a flame. The simultaneous detection of both the UV and the IR light by the sensors will signal an alarm. False alarms from flickering sunlight, arc welding and lightning are eliminated by a combination of UV and dual IR signal processing techniques.

The UV/IR2 detector has selectable output options of relay contacts or 4 to 20mA signal as standard.


  • Refineries
  • Generators
  • Compressor stations
  • High voltage equipment
  • Power plants
  • Fuel loading racks
  • Chemical plants
  • Tunnels
  • Nuclear power sites
  • Storage tanks
  • Engine rooms
  • Pharmaceutical production
  • Military applications
  • Marine Industry
  • Aircraft hangars
  • Petrochemical offshore/onshore
  • LNG/LPG production

Item Numbers


UV IR2 HT Flame Detector