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PRO
®
check
2
Ultrasonic Oxygen Indicator
MAINTENANCE
Battery Replacement
When the LCD displays "LO BATT" in the lower left corner, the battery
is low and should be replaced.
PRO
check
®
NOTE: The
2
must be removed from the carrying case to
replace battery.
Install a new 9-volt battery by sliding the battery door (located on the rear
of the unit) away from the case. Connect the 9-volt battery to the standard
9-volt battery connection and lay the battery sideways in the battery
compartment. Insert battery door by sliding door back onto unit in the
reverse direction of opening.
Cleaning
PRO
check
®
The
unit may be cleaned by wiping the case with a mild
2
detergent or standard topical disinfectant and a soft cloth.
CAUTION: Do not let cleaning solution spill on or inside
unit. Unit is not intended for any type of sterilization.
8
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