Dimensions: 12"(H) x 7 3/4"(W) x 6"(D)Digital displayTest/reset button: Tests circuitry and resets alarmEachKidde 900-0113-02 Carbon Monoxide Propane and Natural Gas AlarmDimensions: 12"(H) x 7 3/4"(W) x 6"(D)Digital displayTest/reset button: Tests circuitry and resets alarmKidde 900-0113-02 Carbon Monoxide Propane and Natural Gas Alarmhttp://s7d5.scene7.com/is/image/Staples/s0643178_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0643178_sc7?$thb$http://s7d5.scene7.com/is/image/Staples/s0643178/Kidde-900-0113-02-Carbon-Monoxide-Propane-and-Natural-Gas-Alarm/product_154336Kidde 900-0113-02 Carbon Monoxide Propane and Natural Gas Alarm0.00