Digital Display
Displays concentration, in parts per million,
of carbon monoxide in air. Also displays "ERR" if unit
malfunctions, and "Lb" when low battery
levels are reached (see page 11 for more information).
Battery Life Indicator
See page 14 for more information.
Alarm
Loud 85 decibel alarm sounds
when detector senses dangerous
carbon monoxide levels.
See pages 18-23 for more information.
Protocol Label
Access by lifting top cover,
tells you what to do if the
alarm sounds.
See page 15 for more information.
Bottom Cover
Top Cover
Sensor Error Icon
See page 11 for
more information.
Local Emergency Number
If Reading/Alarm Occurs…
CAUTION
: See back
panel and/or Users Guide
for additional
information.
Alarm
Operate
Sensor
11 - 35 ppm
Ventilate your home –
monitor the unit for
rising CO levels.
100+ ppm
If no “flu-like” symptoms
are being experienced, follow
the previous procedures.
35 - 100 ppm
Ventilate your home –
call a qualified, service technician
to inspect for possible sources of
carbon monoxide.
If “flu-like” symptoms are
being experienced…
• Immediately evacuate the premises.
• Call 0800 111 999 or your local fire
department.
• Do not re-enter your home until the
problem is corrected.
Battery
Level
NIGHTHA
WK
Test/
Reset
Alarm
PPM of CO
CARBON MONOXIDE
ALARM
Peak
Level
Model No. 900-0089
Operate
WARNING: Malfunction may occur if tampered with
or not installed in accordance with
manufacturer’s instructions.
IMPORTANT THIS CARBON MONOXIDE ALARM IS NOT
NOTICE: INTENDED FOR PORTABLE USE.
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