Omega Vehicle Security OS643-LS - Manual (Page 8)

6
OPERATING INSTRUCTIONS
Push buttons
Display Back-Light Button
Release MEAS button then press " " button to toggle between turning on and
off the Back-Light. When releasing the MEAS button the Back-Light will turn off
automatically after 15 seconds to extend battery life.
Laser Marker Button
Release MEAS button then press " " button to turn on the Laser Marker
annunciator. If " " annunciator is turned on, press MEAS button and the laser
marker beam will be emitted. Releasing MEAS button will turn off the laser marker
beam.
MEAS (MEASURE) Button
Depress MEAS button to turn on the meter for measuring temperature. Release
the MEAS button to stop measuring temperature and automatically hold the
display reading. The meter turns off automatically after 15 seconds.