Ei Electronics Ei 203EN Instruction Manual page 23

B15583-R3-203-204-205 U&C 8/5/04 7:45 AM Page 23
(3) The CO Alarm may not be heard. The sound output is loud but it may not be heard
behind a closed door or if it is too far away. Interconnecting CO Alarms greatly improves
the probability that they will be heard. The Alarm may not wake up somebody who has
taken alcohol or drugs. The alarm sound may be masked by other sounds such as T.V.,
stereo, traffic noise etc. Fitting CO Alarms on either side of closed doors will improve their
chance of being heard. This CO Alarm is not designed for people with impaired hearing.
(4) CO Alarms don't last indefinitely. CO Alarms are sophisticated electronic devices
with many parts. Although the alarm and its component parts have undergone
stringent tests, and are designed to be very reliable, it is possible that parts can fail.
Therefore, you should test your CO Alarm weekly. The CO Alarm must be replaced
after 5 years operation.
(5) CO Alarms are not a substitute for life insurance. House-holders are responsible
for their own insurance. The CO Alarm warns of increasing CO levels, but we do not
guarantee that this will protect everyone from CO poisoning.
(6) CO Alarms are not suitable as early warning Smoke Alarms. Some fires produce
Carbon Monoxide, but the response characteristics of these CO Alarms are such that
they would not give sufficient warning of fire. Smoke Alarms must be fitted to give early
warning of fire.
The CO Alarm does not detect the presence of natural gas (methane), bottled gas
(propane, butane) or other combustible gases. Fit combustion gas alarms to detect these.
Note: Carbon Monoxide Alarms, with electrochemical sensors have a cross sensitivity
to hydrogen. This means that they can alarm due to sensing hydrogen being produced
by batteries being incorrectly charged such as on boats or with battery back-up
systems such as those used with alternative energy systems. About 500 ppm H2 will
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