There are 3 infrared rays sensors which observe the wavelength of CO2 gas emitted before and after the fire. Then they read the infrared rays’ wavelengths assorted by the range of it and analyze whether the fire is real or not. Because they forward the calculating result came from the three signals, it is possible to expedite the alarm.

- Power : DC 24V ±20% (40mA Max)

- Range : 30/50m, 100º Angle