Explorer Technology Group DLV50 - 3 Power Saving Features; Auto-Off; Low Battery Indication; Checking Internal Battery Voltage

3.0 Power Saving Features
3.1 Auto-Off
After approximately (3) minutes of non-operation, the unit will beep and display an auto-off warning
for 10 seconds. Pressing any button during this time will cancel the auto-off feature.
3.2 Low Battery Indication
A low battery is indicated by a warning:
It is recommended that the battery is replaced before the next scheduled use.
3.3 Checking Internal Battery Voltage
To check the battery voltage at any time
(i) If not in Main Menu, press the “BACK” button repeatedly to enter the “Main
Menu”.
(ii) Press the left soft key “ABOUT” to display the
“About Screen”.
+0.000
049 +2.223 VDC
048 +2.023 VDC
047 +2.227 VDC
046 +2.237 VDC
045
+2.423 VDC
BACK
MENU
A:049 Sum:104.6
Auto Off (9)
+0.000
049 +2.223 VDC
048 +2.023 VDC
047 +2.227 VDC
046 +2.237 VDC
045
+2.423 VDC
BACK
MENU
A:049 Sum:104.6
Low Battery!!!