https://vedardalarm.com/manual-or-auto-reset-wired-smoke-detector-relay-output-p-318

Photoelectric detector(hereinafter called detector ) detects the smoke by a couple of infrared diodes. The principle of detecting is granule in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber.

The detector works once connected to DC power directly. Operation Indicator flashing signifies detector working normally and Alarming Indicator on signifies detector alarming. Built-in a couple of output contact, contact connect/disconnect after alarm. Power-down/Auto-reset when no smoke exiting nearby. Installing with mounting base.

●INFRARED PHOTOELECTRONIC SENSOR

●POWER-DOWN/AUTO RESER

●INTELLIGENT LOGIC CONTROL

●ALARM OUTPUT NO/NC

●NETWORK OUTPUT/LED INDICATING ALARM

●ANTI-LIGHT, MOTHPROOF,DUSTPROOF

●STRONG ADAPTABILITY FOR CIRCUMSTANCE

●SMT DESGN,HIGH STABILITY

●STAIN STEELESS SHIELD,ANTI-RFI(20V/m-1GHz)

Technical Specification

Operating Voltage: DC9-35V

Standby current: 2mA(24V NO/13MA 24VNC)

Alarm current: 18mA (24Vno) 6mA(24v nc)

Alarm Indication: RED LED ON

Alarm Output: RELAY OUTPUT

CONTACT RATING ：1A @DC5V/DC48V

Sensitivity: 0.5db/m (+-0.1db/m)

Demension: 103mm*53mm