Requires 3 AA batteries
1. Single button operation– ON|OFF
2. Dual-beam laser projects both horizontal
and vertical (90º reference) laser “chalklines” on surface
3. Push buttons used for non-abrasive vertical mounting;
Mounts to surface using adhesive putty (included)
4. Precise leveling vials
5. T-Edge on base to align laser to surface edge
6. 90º layout guide– calculate and turn angles in
5º increments