Johnson Level & Tool Mfg. 40-6530 - Manual (Page 12)

(b) Display
1. Power symbol
2. Low battery symbol
3. Coarse/Fine detection symbol
4. Horn symbol
5. Detecting position symbol
3. Operation Guide
(a) Installation of battery
• Open the battery-box cap
• Put the 9V battery into the battery-box. Please note the polarity.
Then close the battery-box cap.
Note: Take the battery out of the detector if it will not be used for a
long time.
(b) Turn on/off
• Press the power button. When Power symbol is dis-
played, the detector is ready for coarse detection.
• When low battery symbol is displayed, change
the battery.
• Press the power button again to turn off the
detector.
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