The Kidde HD135F is a 120VAC Wire In Heat Alarm that responds to temperature rather than smoke. The alarm will sound if temperatures rise about the 135°F. The Kidde HD135F interconnects with up to 24 devices (of which 18 can be initiating) including smoke, CO and heat alarms. This unit includes a 5-year limite4d warranty and is UL Listed.

This product Kidde HD135F replaces Firex 5700.

• Interconnectable - Interconnects with up to 24 Kidde devices.
• Test Button - Tests unit's electronic circuitry, horn and battery function.
• 9V Battery Back Up - Provides continuous protection even during power outages.
• Red LED - Flashes every 30-40 seconds to indicate proper operation.
• Low Battery Indicator - Alerts user in the event of a low or missing battery.
• Quick Connect Power Harness - Makes installation fast and easy.