The SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.
Photoelectronic Low-Profile Plug-In Detector for Special Applications
Note: For pendent mount applications where remote testing is NOT needed, the 2151 needs to be used with either the B114LP or B114
The SpectrAlert Advance P2RK-P is an unmarked, red, two-wire, outdoor horn strobe with selectable strobe settings of 15, 15/75, 30, 75, 95, 110 and 115 cd. Outdoor back box included.
Wheelock’s Series CVX/CSX Explosion-Proof Bells have earned the reputation for rugged, reliable performance over years of service in hazardous environments.