POWER SUPPLY
The meter is powered by either 4 AA
batteries or a DC adaptor(9V/1A output).
Install the batteries into the battery
compartment on the rear and make sure
they are in correct polarity and good
contact.
will
appear on the LCD
.
atter
When an adaptor is used, it will
cut off the power supply from batteries.
The adaptor can’t be used as a battery
charger.
When battery voltage gets low,
(Fig.1)
The CO sensor can’t work normally
2
under low voltage, please replace with
fresh b
ies or connect with an
adaptor.
3
B
CO
2
PM
B
Fig.1