Operating voltage: AC90V~AC240V 50-60Hz Battery: 9V NiMH rechargeable battery (without) Warm-up time: 3 minutes Power consumption: normal monitoring 1.5W, alarm status 5.0W Detection gas: methane (CH4) + carbon monoxide Alarm concentration: gas over 6% CO 100ppm Standby current: 0.025A Alarm current: 0.030A Alarm sound: 70dB (within 1 meter) Operating temperature: 0C~+50C Operating humidity: 10%-95%RH *Output form: audible and visual alarms Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Size: about 113x74x46mm Colour:White Material:ABS Package Contents: 1 x Carbon Monoxide Detector 1 x US Plug 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.