[COD]+Fire Alarm 2/4 Wire DC9-36V Network Photoelectric Smoke Detector For Fire Alarm System With Current Output For connection to the control panel

If you are buying a replacement, buy one to try and see if it is compatible. ThanksThis product is a photoelectric smoke detector (hereinafter referred to as the detector).It adopts the principle of infrared light refraction by the particles in smoke to detect the fire circuit.Mainly consists of infrared transmitter and receiver, the transmitter and receiver are placed in an optical labyrinth.The transmitter tube and receiver tube are placed in the optical labyrinth optical labyrinth can be shielded from outside interference with stray light, but does not affect the entry of smoke.interference, but does not affect the entry of smoke. In the smoke state, only receive a very weakInfrared light, smoke, due to the scattering effect, so that the receiving optical signal increaseinterference and reduce power consumption, the transmitter circuit adopts pulse mode, which can improve thelife of the transmitter tube.- Operating voltage: AC/DC 9-24V- Standby current: ≤16mA- Alarm current: ≤19mA- Operating temperature: -10.C~+50.C- Ambient temperature: Maximum 95%RH (no condensation)- RF interference resistance: 10MHz - 1GHz 20V/m - Alarm output: normally open / normally closed optional, contact capacity DC24V100mAReset mode: automatic reset / power failure reset optional- Coverage area: When the height of space is 6m-12m, a detectorCoverage area: When the height of space is 6m-12m, the protection area of one detector is 80 square meters for general protection site; when the height of space is below 6m, the protection area is 60 square meters.When the space height is below 6m, the protection area is 60 square meters. Specific parameters should beSpecific parameters should be based on the automatic fire alarm system design code GB50116-98.- Sensitivity: 0.5db/m (±0.1db/m)This product is a non-coding smoke detector, with a pair of switchingoutput contacts, according to the actual need to choose normally open or normally closed output. NormalWhen working normally, the indicator light flashes every 8 seconds; when in alarm, the indicator light is always on and the alarm output contact is activated.When alarm occurs, the indicator light is always on, and the alarm output contact operates at the same time.This product is a non-coding smoke detector, with a pair of switchingoutput contacts, according to the actual need to choose normally open or normally closed output. NormalWhen working normally, the indicator light flashes every 8 seconds; when in alarm, the indicator light is always on and the alarm output contact is activated.When alarm occurs, the indicator light is always on, and the alarm output contact operates at the same time.