Carbon Monoxide Alarm with Free Metro Delivery

• A perfect item for protecting your family from the dangers of carbon monoxide
• Advanced level of protection, easy to read with the digital display, even in low light conditions
• Displays the level of carbon monoxide the unit is sensing
• Green LED: Flashes every 30 seconds to indicate the unit is operating properly. The green LED will also flash before CO reading is taken and when any button is pressed
• Red LED : When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound
• The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash
• This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated
• Test/Reset button is designed for weekly testing if it works properly and reset the unit during CO alarm
• Alerts users when batteries need to be replaced
• This alarm is highly recommended to be mounted on a wall surface
• Compact, lightweight & easy to operate
• LCD displayer (optional): 4 digits LCD displayer
• Audibility: 85dB ( at 1m distance ), Frequency 3 - 0.5KHZ
• Standby current: <50µA
• Alarm current: <50mA
• Standby mode: Green LED flashes once every 30 seconds
• Alarm mode: Red LED quickly flashes 4 times with unit chirping every 5 seconds, then repeat
• Low-bat Indicator: Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD
• Mal-function Indicator: Chirp every 30s with green LED out and Err on LCD
• Power consumption: 0.3mW
• Powered by: 3 x AA Batteries (not included）
• Sensor: Electrochemical CO sensor
• Alarm style: Per EN50291
• Colour: White
• Dimensions (LW): 10 x 4cm
• Includes: 1 x carbon monoxide alarm (not included battery), 2 x screws

Sensitivity/Alarm Time:

• Within 60~90 minutes at 50ppm CO concentration
• Within 10~40 minutes at 100ppm CO concentration
• Within 3 minutes at 300ppm CO concentration