Notifier NH-200-IV SF 18/12 Edwards 757-8A-RS25W speaker strobe is

Edwards 757-8A-RS25W speaker strobe is a high-quality appliance for emergency voice communications

AC voltage

a 449 or 4-inch square by 2-1/8" deep box must be used

boiler rooms

providing early warning of potential CO hazards

Notifier NH-200-IV SF 18/12 Edwards 757-8A-RS25W speaker strobe isThe NOTIFIER NH 200 Series intelligent thermal detectors are designed for both performance and aesthetics, and are direct replacements for the NH 100 Series. A new modern, sleek, contemporary design and advanced thermal technologies make the NH 200 Series ideal for both system operation and building design. The point ID address, set using rotary decimal switches, provide specific detector locations. Data Sheet: NH 200 IV