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The FS-2000E sensor quickly detects ultraviolet rays contained in flames and activates a built-in alarm sound plus an open collector output.


  • External Output to a Security System
  • Alarm Memory
  • Variable Response Timer
  • Built-in Alarm Sounder
  • Variable Protection Area Adjustment
  • Compact Design



  • Specifications
  • Downloads

Model FS-2000E
Detection system Ultraviolet rays detection
(detected wave length 180~260nm)
Detection area Distance: 10m (33ft) max. (7cm flame)
Angle: approx. 120 degrees conically
Adjustment range 
· Horizontal 25 degrees by base unit
· Vertical 30 degrees (4 steps) by sensor head
Sensitivity adjustment Detection timer 4 steps (0.2/1/6/30sec)
Power supply 10V to 30VDC (non-polarity)
Power consumption Standby: 25mA or less
Alarm: 75mA or less (sound ON) / 40mA or less (sound OFF)
Alarm output Dry contact relay Form C (NO/NC)
Contact action: off-delay (approx. 2 sec.)
Contact capacity: 30V (AC/DC) 0.3A, (protective resistance 3.3Ω)
Alarm memory Auto-reset operation (on/off setting available)
Memory LED blinks for 3min., then lights for 47min.
LED Alarm LED (red): light on for off-delay 10 sec.
Memory LED (yellow): light on for memory, blinks at start-up
Buzzer Alarm: intermittent every 0.2 sec during off delay 10 sec
Volume: 80dB or more 1m (3.3ft) ahead (silent setting available)
Tamper output Dry contact relay form b (NC)
Capacity: 30V (AC/DC) 0.1A
Wiring Terminals
Ambient temperature -10°C to +60°C (+14°F to +140°F)
Installation Indoor (ceiling or wall mount)
Weight Approx. 150g (5.3oz)
Appearance ABS resin (white)
Supplied accessories · Sensor locking screw: 1pc
· Tapping screw: 2pcs

Instruction Manual