Maintenance
Filter
Keyway alignment
Pull straight out (do not
twist)
to remove
sensor
Unscrew tip to
replace filter
Push straight on (do not
twist)
to install
sensor
Batteries:
Install Batteries
: Turn battery door to the unlock position as
shown below. Install batteries with polarity mark as shown inside
battery compartment. Relock battery door by turning to lock
position.
Sensor:
Replace Filter
: Unscrew sensor tip as shown to replace filter.
Replace filter whenever it becomes visibly dirty or every 2 to 3
months depending on use.
Replace Sensor
: Remove sensor by pulling out of socket. Install
the new sensor by aligning the notch in sensor cover with the raised
keyway on sensor socket holder (see figure below).
Note: Do not force sensor into socket. Misalignment can
damage the sensor pins.
IMPORTANT: Make sure sensor is fully inserted for proper
operation. The detector will stay in warm-up mode and the on/off
switch will become inoperative if the sensor becomes loose or is
not fully inserted.
