©2011 Johnson Level & Tool 17
(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
3. Operation Guide
(a) Battery Installation
• Open the battery cover door by turning the battery cover screw
counter-clockwise. Put the battery
into the battery case noting the
polarity shown in the
battery compartment.
• Put the battery cover door back, and
tighten the screw.
Note: 1) Remove the battery when the unit is being stored for a long time.
2) When the low battery indicator is displayed, change the battery
soon.
4411H-English_Manuals 3/11/11 1:13 PM Page 17
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