System Sensor 5621 Heat Detector HTRI-M (500-034000) Simplex 4905-9939 Adapter Plate for

Simplex 4905-9939 Adapter Plate for mounting to Wiremold Box or 2 gang electrical box (typically retrofit applications)

Each detector utilizes a dust-resistant photoelectric smoke chamber and

Provides an additional isolated loop with short circuit isolation to the existing IDNet 2 channel

000 ft/min (0

it delivers accurate and reliable sensing using a pulsed LED light source and a silicon photodiode receiver—ideal for modern fire safety systems

System Sensor 5621 Heat Detector HTRI-M (500-034000) Simplex 4905-9939 Adapter Plate forSystem Sensor 5621 is a 135F fixed temperature, rate of rise, dual circuit, mechanical heat detector