Johnson Level & Tool Mfg. 40-6639 - Manual (Page 15)

©2012 Johnson Level & Tool 15
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
6249H_Manuals 10/18/12 2:49 PM Page 15