Smoke Detector 4-wire with relay output DC powered

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4-Wire Smoke Detector with Relay output DC powered YT-142 The detectors are photo-electronic detector uses a state of-the-art optical sensing chamber. This detector is designed to provide open area protection and to be used with most security alarm control panel. Two LEDs on each detector provide local 360° visible alarm indication. They flash every six seconds indicating that power is applied and the detector is working properly. The LEDs latch on in alarm. LEDs will be off when a trouble condition exists indicating that the detector sensitivity is outside the listed limit. The alarm can be reset only by a momentary power interruption. The detector that initiated the alarm condition will have its red LED and relays latched until reset by panel. The default condition for the relay is normally open (NO). It can be adjusted to Normal close (NC) condition. 2. SPECIFICATIONS Operating Voltage Range: 9 to 28 VDC Volts Non-polarized Standby Current: ≤200μA Maximum Alarm Current (LED on): ≤45mA Alarm Relay Contact Ratings: 2A@ 24V DC Operating Humidity Range: ≤95%RH(40°C±2°C) Relative Humidity, Non-condensing Operating Temperature Range: -10°C to 50°C (14°F to 122°F) Smoke Alarm Sensitivity: 1.06±.26%FT Temperature Alarm Sensitivity: 57°C (135°F) A1R (only for with heat sensor) Height: 55 mm installed in Base Diameter: 103 mm

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