Optical smoke alarm with mains power Kidde KF20NDC [7161559]

A mains-powered optical smoke alarm that can be linked to up to 23 other Kidde alarms (ionisation, optical or thermal). Once linked, a hazard detected by a single device will trigger an alarm on all connected alarms.

Features

• The connectivity feature allows up to 23 Kidde and Firex mains powered alarms to be connected - all alarms will sound simultaneously if danger is detected
• alarm memory - identifies the source unit within the connected network
• dust compensation and insect screen - reduces false alarms
• The test/silence button allows regular testing of the alarm function and can be used
• for temporary suppression of error alarms
• automatic reset after activation
• Tamper-proof locking device prevents unauthorized removal without tools
• operates on mains power or the included 9V spare alkaline battery