Ei207D Carbon Monoxide Alarm

The Ei207D is a battery operated Carbon Monoxide (CO) Alarm with a LCD digital display designed to be installed in rooms containing a fuel burning appliance.

  • Proven electrochemical 10 year CO sensor
  • LCD display
  • Gives warning of CO from 10ppm
  • Easy to fit twist-on base
  • Audible and visual “End of Life” indication
  • Test/Hush button
  • Memory feature
  • Integrated piezoelectric sounder

EN 50291-1:2018
EN 50291-2:2019

The Ei207D is a battery powered Carbon Monoxide Alarm which contains a proven 10 year electrochemical CO sensor to detect the presence of toxic levels of Carbon Monoxide (CO).   Each sensor is individually calibrated and tested in Carbon Monoxide gas to ensure accuracy.  

The LCD displays the level of CO in ppm, faults, status and recommended actions.  The level of CO will start flashing on the LCD display as soon as the Alarm detects 10ppm.  CO levels are displayed in 5ppm intervals.

When the Alarm detects potentially dangerous levels of CO, the red LED flashes and if the CO persists the alarm will sound. The higher the level of CO detected, the sooner the alarm will sound.

The memory feature allows an Alarm that has previously activated to be easily identified (as the red LED will continue to flash for 24hrs after the event or afterwards when you press the Test button).

The Ei207D self-checks its sensor, battery voltage and internal circuitry regularly.  Any fault condition will be indicated by a combination of visual and audible indicators (ie yellow flashes and beeps). A low battery beep can be suppressed for 24hrs by pressing the Test button until replacement batteries or Alarm are fitted.

The Alarm has an “End of Life” indicator (audible and visual) which will notify the user when the Alarm needs replacing at the end of its 10 year operational life.

The Alarm is supplied with a twist-on mounting base which as multiple fixing points so it can be easily secured to a ceiling or wall.  Free standing install is also possible.

Product life:10 years
Supply voltage:2 x AAA Alkaline batteries (replaceable)
Sound level:85 dB(A) at 3m
Button test:Checks sensors, electronics and horn
Silence function:Silences alarm once for 4 minutes if <150ppm
Visual indicators:
Green LED: Button Test
Red LED: Pre-alarm, alarm, hush mode and memory
Yellow LED: Fault
LCD screen displays: level of CO detected (from 10ppm), recommended actions, Alarm status including faults
Memory feature:Records last alarm event
End of Life:
Audible and visual indicators
(3 beeps with 3 yellow flashes per minute)
Normal Operating and Storage Temperature Range:-10°C to 40°C
Normal Operating and Storage Humidity Range:15 % to 95 % Relative Humidity
Fixing:Screw fixings and mounting plate supplied
 Product: 120mm x 40mm x 105mm
 Packaged: 120mm x 50mm x 135mm
Product only: 180gr 
 Product + Packaging: 210gr
Warranty:5 years (battery excluded)

Product Manual

Product Datasheet