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3. Switching on Your CO Alarm
NOTE: Your CO alarm must be installed by a competent person using the guidance that follows;
1. Remove the ba2eries from the pack and insert them into the ba2ery compartment. Make
sure that you fit the ba2eries in accordance with the polarity markings (+ or -) within the
ba2ery compartment. If correctly installed, the alarm will give a short beep.
2. Push the test bu2on. The alarm will beep once followed by 4 loud pulses, then a brief
pause and then 4 more pulses, ending with a single beep.
3. If you have a digital read-out alarm (model 5DCO) the LCD screen will show “---“ and then
“888” before se2ling at “0”
4. Check that the green LED flashes at 30 second intervals to show that the alarm has power.
This is easiest to see in a dark area, or with lights switched off.
2532-7202-10_5CO_ASH:_ 2018.10.26 5:42 PM Page 7
