LaserLiner Quadrum OneTouch Mode D'emploi page 14

Special product features and functions
adjustment, with two electronic measurement sensors detecting the X and
ADS mode 35 seconds after being switched on and is permanently checked
external factors or the laser loses its height reference, the laser will come to
ADS is automatically active after the device is switched on in order to prevent
The ADS does not activate the monitoring function until 35 seconds
!
The tilt, X and Y LEDs flash during the set-up phase; the tilt LED flashes
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The rotary laser starts up by rotating and aligning itself