Johnson Level & Tool Mfg. 40-6780 User Manual

Page 5

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Original mode

Sound function on:
• If the laser signal is on the top (left) side, then the detector will

give a fast tone.

• If the laser signal is on the bottom (right) side, then the detector

will give a double tone.

• If the laser signal is on the middle, then the detector will have a

solid tone.

4. Automatic Shut-Off Function
When not receiving a laser signal and with no operation of the keys
for six continuous minutes, the unit will power off automatically to
preserve battery life.

5. Low Battery Indicator Function
• When the power indicator sign is blinking, it

indicates that the battery is low and should
be replaced.

• A very low battery will result in an automatic

power-off, which requires the user to
replace before continued operation.

Blink

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