6
Battery life
The battery level is checked
every time the display unit is
turned on. If the battery level
is low, or if a battery is in-
serted incorrectly, this low battery image shows on
the full screen for about 10 seconds and the dis-
play will automatically turn off.
In addition to frequency of use, battery life is im-
pacted by use of the backlight and GPS receiver
(for upgraded units). If not needed, the GPS fea-
ture should be disabled. The backlight can be set to
AUTO mode (p. 11). This allows enough time to
see the reading without unduly taxing the battery.
Total Readings
Bluetooth
*
GPS
*
Backlight
Alkaline
Lithium
ON
ON
ON
12,000
24,000
ON
ON
OFF
24,000
35,000
OFF
OFF
OFF
150,000
225,000
*
GPS and Bluetooth capability is an option acces-
sory for the TDR 150 meter (see p. 15)
