Skil ME9821-00 Guide D'utilisation page 13

Fig. 2
Battery
Cover
Battery
Cover Latch
TURN THE TOOL ON AND OFF
Press the Side Button
Side Button for approx.1 second to turn the tool OFF.
NOTE: When the laser is turned OFF and no button on the
measuring tool is pressed for approx. 5 minutes, the tool will
automatically turn OFF to save the battery power.
to turn the tool ON. Press and hold the
Polarity "+"
Polarity "-"
Battery Compartment
13