System Sensor 5621 Mechanical Heat Detector
$55.00
System Sensor 5621 is a 135°F (57°C) Fixed Temperature / 15°F (8.3°C) Rate-of-Rise Mechanical Heat Detector; Dual circuit type
The 5621 is part of System Sensor's 5600 Series of Mechanical Heat Detectors.
A reversible mounting bracket (included) permits both flush- and surface-mount back box installations. Mounts to:
— 3½-inch octagonal back box
— 4-inch octagonal back box
— Single gang back box
— 4-inch square back box with a square to round plaster ring
