BRK Brands 9120B Hardwired smoke detectors with battery backup, the individual by the Contractor Pack

tamper-proof locking devices, the silence, the only key test and loud alarm 85dB

to 120 volts AC with 9-volt battery (included) to stay awake during the surgery

Open design for easy assembly with side-mounted cargo space for a quick exchange and networked up to 18 units (12 smoke, CO 6 / heat / relay)

10-year limited / li >
Introducing the revolutionary BRK 9120 series smoke detectors which are designed from the ground up. It is quickly installed, perform better and are even smarter than before. All these improvements contribute to false alarms and save you time and money. BRK Electronics smoke alarms are designed to be easy to install, easy to maintain, and quality engineering for years of service with virtually no maintenance. The 9120B AC-powered smoke detectors with battery backup includes these features: ionizing

List Price: $ 23.99
Price: 8,39 $