BRK Electronics First Alert CO710 DC 10-Year Sealed Lithium Battery Powered Carbon Monoxide Alarm with Digital Display

10 Year sealed tamperproof battery powered CO alarm with blue backlit digital display. 10-Year Lithium Power - 10 years of continuous protection. No battery change required. Tamperproof Sealed Alarm - Powercell cannot be removed. Digital Display Electrochemical CO sensing tecnology Silence feature End of life feature 10-Years Limited Warranty Model# CO710 Alarm Dimensions 4.75”W x 2.63”H x 0.94”D Weight 4.8 oz Operating Voltage 3V Lithium Power Cell 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 smoke clears Smoke Sensor DC Power: Digital displays shows room temperatureLocal Alarm: Audio alarm and digital display C