FIRST ALERT CO400 Carbon Monoxide Alarm, Battery Power Source, Electrochemical Sensor, Audible, Visual Alarm, 85 dB Thermostats 25% wider prying edge for

25% wider prying edge for better leverage

Inside Diameter: 5/8

Blade Width: 1-1/8

Seal Material: EPDM

Splinter-free cuts - the splinter guards positioned directly on the scribe line prevent the edges from splintering

FIRST ALERT CO400 Carbon Monoxide Alarm, Battery Power Source, Electrochemical Sensor, Audible, Visual Alarm, 85 dB Thermostats 25% wider prying edge forFIRST ALERT Carbon Monoxide Alarm, Electrochemical Detection Method, Battery, Audible, Visual Alarm, 85 dB Sound Level, Electrochemical Sensor, Wall Mounting, White, 40 to 100 deg F, 3. 4 in Width, 1 1 2 in Height, 5 in Depth, Additional Information: Uses (1) 9 V BatteryFeatures: Alerts you to CO threats the first ALERT battery operated carbon monoxide alarm uses an advanced electrochemical CO sensor to detect elevated carbon monoxide levels, when CO