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©2012 Johnson Level & Tool
2. Components
(a) Exterior Instruction
1) Horizontal vial
2) Front display window
3) Front on grade mark
4) Vertical vial
5) LED key
6) Power key
7) Beeper
8) Reception window
9) Fine/Coarse accuracy key
10) Beeper key
11) Back display window
12) Back on grade mark
13) Bracket screw thread
14) Battery cover screw
15) Battery cover
(b) Display
1. Power on symbol
2. Low battery indicator
3. Fine/Coarse symbol
4. Beeper symbol
5. Position indication arrows
Power Key:
Turn on/off the power
Fine/Coarse Accuracy Key:
Switch detecting accuracy
LED Key:
Turn on/off the LCD’s light
Volume Key:
Cycles between high, low and off
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