Johnson Level & Tool Mfg. 40-6001 - Manual (Page 12)

12 ©2013 Johnson Level & Tool - Rev. 3
Measurement Reference Position
Default measurement setting is from the rear of the instrument for all
modes. Be sure to adjust the measuring reference position prior to
engaging a measuring calculation mode. Press to scroll through
the reference point options
Front
Middle - Tripod Thread (Size 1/4”-20 )
Rear
Single Distance Measuring
Press and release to power up.
Direct Laser Beam to Target.
Press and release .
Record measurement (up to 20 measurements will
be stored automatically and available for recall, see
Memory Recall page 26).
Press and hold to power down
Indicator for reference
Tripod
Thread