The Ei204EN is a Carbon Monoxide (CO) alarm powered by 3 x AA alkaline batteries. The CO alarm is housed in an attractive slim-line casing and can be easily secured to a wall or ceiling - the fittings are supplied.
The 204EN CO alarm uses a proven electrochemical cell type sensor which checks CO concentration every 50 seconds. Prior to delivery all units are individually calibrated and tested in CO gas in order to ensure accuracy. The CO alarm is guaranteed for two years.
The alarm has to be replaced after 5 years.
An easy to use Test/Hush button allows the user to check that the horn and electronics are working and to silence nuisance alarms.
| Sensor: | Electrochemical sensor |
| Sensitivity: | Meets BSEN 50291: 2001 (Table B) |
| Button Test: | Checks the electronics and horn |
| Automatic Self-Test: | Horn beep and amber fault light flashes every 40 seconds if a fault is found |
| Supply Voltage: | Three Alkaline AA type batteries (supplied) |
| Dimensions: | 135 x 105 x 45 mm |
| Weight: | 250g |
| Power-On Indicator: | Flashing green LED every 45 seconds |
| Alarm: | Electronic Piezoelectric horn |
| Alarm Sound Output: | 85dB (minimum) at 3m |
| Alarm Status: | Red LED flashes and horn sounds |
| Temperature Range: | -10° to 40°C |
| Humidity Range: | 15% to 95% Relative Humidity |
| Fixing: | Simple screw fixings |
| Plastic material: | UL94VO flame retardant |
| Warranty: | 2 year (limited) warranty |
| Approvals: | Kite marked to BS EN50291:2001 (Lic. No. KM86596) |
Specifications are subject to change.



To mount onto a wall or ceiling, simple remove the battery compartment and mark the position of the two mounting holes. Drill two holes using a 6mm drill for the plastic plugs (supplied) and screw the unit home with the screws supplied.
If locating the CO alarm in a room with an appliance.
If locating the CO alarm in a room remote from the appliance.
For more specific details please click here to download the Use & Care Instruction Booklet.
Use & Care Instruction Booklet is in a PDF Format. Click here to download a PDF viewer.
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