8. Maintenance
WARNING: Reinstall the CO Alarm as soon as possible to assure
continuous protection.
The following is a list of substances that at high levels can damage the
sensor or cause temporary readings that are not CO readings:
• Ethylene, ethanol, alcohol, iso-propanol, benzene, toluene, ethyl
acetate, hydrogen, hydrogen sulfide and sulfur dioxide.
• If using this alarm in a boat please note that lead acid batteries that
may be present can generate hydrogen
• Also most aerosol sprays, alcohol based products, paint, thinner,
solvent, adhesive, hair spray, after shave, perfume, auto exhaust
(cold start) and some cleaning agents.
Placing unit into shut down mode at end of its useful life.
Once the unit has entered end of life or error mode it is neces-
sary to turn the unit off. This stops it from making a sound and also
discharges the remaining capacity of the battery to render it safe.
1. Remove the bracket/back cover from the unit by sliding a screwdriver
between the unit and the cover at the recess in the center of the
unit. This allows access to the back of the unit.
2. Once the back of the unit is visible, locate the expanded slot on the
lower left hand side.
3. Using a flat blade screwdriver, put it in the slot and slide it toward
the top. You should feel the switch inside the unit slide up and stop.
Be sure to insert the screwdriver straight in and not at an angle
where the switch might be missed.
The unit may make some brief noises but should be silent and not
continue to beep after one (1) minute.
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