BRK Electronics First Alert CO250LBT Z-Wave Enabled 9V DC Lithium Battery Operated Tamper Resistant Electrochemical Carbon Monoxide (CO) Alarm

Tamper Proof 5-Year 9V Lithium Battery Electrochemical Carbon Monoxide Alarm with Silence. Tamper Proof Bracket Electrochemical CO Sensor Silence Feature End of Life Signal provides audible notification alarms needs to be replaced Tamper Resistant Locking Pin 5-Year 9V Lithium Battery Included 7-Years Limited Warranty Model: CO250LBT Alarm Dimensions: 5.1”W x 4.38”H x 1.64”D Weight: 6.3 oz Operating Voltage: 9V Lithium Battery Powered) Temperature Range: 40°F (4°C) to 100°F (38°C) Humidity Range: 10% to 95% relative humidity (RH) Audio Alarm: 85dB at 10 feet Test/Silence: Electronically simulates carbon monoxide condition, causing the unit to alarm. Press and hold test/silence button Alarm Reset: Automatic when CO clears CO Sensor: Electrochemical Indicator Lights/Sounds: DC Power: Intermittent Red LEDLocal Alarm: Aud