©2010 Johnson Level & Tool - Rev. 1 11
Vertical Usage
1. Put 4 “AA” alkaline batteries in the unit.
2. As shown in figure on previous page, place the laser on a flat
surface or 5/8” - 11 tripod
3. Adjust the vial leveling knobs to center the bubble inside the
Z-vial.
4. Turn on the laser.
5. After finishing work, turn off the laser.
Detector Usage (included in Model No. 40-6512)
1. Technical Specifications
Detecting accuracy ±1.5mm (<50m) ±2.5mm (>50m)
Turn-off timer 6 min ±1min
Power 2 “AAA” Batteries
Battery life 45 hours of continuous use
Sound function Short sound and solid sound
LED indication Upper red, middle orange, middle green,
down red
Size 4.645” x 2.637” x 0.984”
(118mm x 67mm x 25mm)
Weight 0.253 lbs. (115g)
3919H_Manuals 10/12/10 10:31 AM Page 11
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