System Sensor HCRL-LF-BP10 Low-Frequency SounderL Series low frequency sounders include a variety of features that increase their application versatility while simplifying installation. They are designed to address the NFPA 72 sleeping space requirements that require a low frequency notification appliance that operates within frequency range of 520 Hz 10% and is of a square wave tone. These devices feature plug in designs making installations fast and foolproof while virtually eliminating costly

The Simplex 49WPBB-AVVOWR is a red surface-mount weatherproof mounting box required for TrueAlert ES wall-mount weatherproof audible/visible appliances with red housings

— 276-K2 General alarm key

Surface (or Semi-Flush) Mount ACS or SCS Backbox

for ceiling mounting

Simplex 49WPBB-SOWR Weatherproof Backbox Speaker Wall Red

and battery charger

This gateway facilitates complete monitoring and control of a standard or high-speed NFN network and is available in a PC version and an embedded version

Use to cover surface mounted 1-1/2” deep box with 1-1/2” deep extension external to wall

and 16” sizes

Strobe times its own flash rate at a nominal 1 Hz (one flash per second)

Detector mounts onto mechanical adapter plate (included)

The box must have a minimum depth of 21/8 inches