First Alert Hardwired Ionization Sensor Smoke Detector PPG1109-6 It also features SmartKey Security™

It also features SmartKey Security™ as the back-up keyway

non tamper-resistant outlets and wires

Connectivity and Control

BladeSpray® arm gives you better water coverage for a thorough clean every time

Board Dimensions (LxW): 2 1/2" x 2 1/2"

First Alert Hardwired Ionization Sensor Smoke Detector PPG1109-6 It also features SmartKey Security™The First Alert SMI100 AC Hardwire Interconnect Smoke Alarm with Battery Backup meets new industry standards utilizing First Alert's Precision Detection advance sensing technology. This hardwire smoke alarm is easy to install and replace existing alarms with no need to rewire. Plus interconnect compatible alarms to create a whole home alarm system to help provide an early warning. Precision Detection technology helps reduce cooking nuisance alarms and