Are you looking for a professional, yet and carbon detector? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional and carbon detector must meet you needs. It is one of the for you. Features - Color: White. - Material: Plastic. - Size: 11.5 x 11.5 x 3.7 cm. - Battery: 3 x 1.5V AA batteries (not included). - Alarm sound: 85db. - 50ppm: Alarm 60-90 minutes - 100ppm: Alarm 10-40 minutes - : Alarm 3 minutes - Alarm standard: EN50291. - Working voltage: 9V. - Working current: <20mA. - Green LED flashes every to indicate the unit is operating properly. - When a dangerous level of carbon is detected and a potential f ire is detected, the red LED will flash and the alarm pattern will sound. - Suitable for travel trailer, boat, home, garage, bathroom, kitchen area, office, warehouse, etc. - LCD display concentration PPM, real-time monitoring to protect your safety. - and CO sensing technologies work together to detect real fires faster and reduce cooking-related nuisance alarms. - Loud 85 with red light on while in the alarm mode for the life-saving safety. Package list: 1 x alarm