TRANSMITTER
Battery Level Meter
Power Switch
Ground Plate 
Jack
Figure 2. Transmitter
Power Switch: Pull out switch turns on power. 
Ground Plate Jack: Used with the optional Ground Plate Assembly 
for the Conductive Trace Mode. 
Battery Level Meter: Gives a visual indication of battery strength. 
Replace batteries if below 5 on meter. 
6
19
BATTERY REPLACEMENT
1.  Turn either instrument (Transmitter and Receiver) over 
on its face and remove access plate with coin or large 
blade screwdriver. 
2.  Lift the battery pack out carefully. Turn the battery 
pack slightly, unsnap the battery connector and slip 
off the  sleeve.  Change  all eight  batteries. Slip the 
sleeve back on, then reattach the connector to the 
pack. Slip the battery pack back into its compartment 
and do  a battery  test.  Refasten the  access plate. 
Both the transmitter and receiver will work from 30 to 
40 hours on a set of 8 standard quality, carbon-zinc 
batteries.  Alkaline  batteries  will  give  substantially 
longer  life  and in  cold weather  will perform  much 
better than standard carbon zinc batteries.
NOTE: As supplied from the factory, the battery pack is 
surrounded by a plastic sleeve to retain the batteries during 
possible rough handling and shipping. As a precaution, always 
reinstall the sleeve after battery replacement.
DO NOT MIX OLD AND NEW BATTERIES
Figure 10. Changing Batteries