Instructions for Voltmeter
The voltmeter you have purchased is designed for easy installation on an
Injoy style lure machine (See Below). If the components of your lure machine are
arranged differently, you may need to mount the voltmeter in a different
location from that shown below.
To install the voltmeter on your lure
machine, you need to locate and mount the unit (using the screws
provided) so that it is easily seen while operating the lure
machine. Next, connect the red wire to the 5/16" (large)
terminal located on the right side of the solenoid. If your lure
machine has a different style solenoid than shown above, the red
wire needs to be connected to the same terminal as the positive
cable connected to the battery. The black wire can be connected
to any grounding fastener but the solenoid mounting bolt is
convenient and recommended.

The voltmeter will constantly monitor
the voltage of the battery connected to your lure machine. A
fully charged 12 volt battery in good condition will register
between 13 and 14 volts. These voltmeters are not a precision
instrument but they allow a relative reading of the battery
condition at a glance. It is a good idea to index your voltmeter
by attaching it to a fully charged battery and comparing the
reading with that given by a hand held precision voltmeter (if
you have one). If you do not have access to a precision
voltmeter, than just notice what the reading of the voltmeter is
with a fully charged battery...it should be reading close to the
13 volt point.
Keeping an eye on the voltmeter throughout the day will give you valuable
information as to what is the condition of your battery and the battery charger,
if you are charging your battery in place. If both items are doing their job or
adequate for the job at hand, the voltmeter should return to the 13 volt reading
between courses (time wise within 5 to 10 minutes). A normal situation would be
as follows: after running a course, the volt meter reads 12 or 11-1/2 volts and
the battery charger should bring the battery back to 13 volts in 5 or so
minutes. If after each course the volt meter shows a lower reading than before
that course, the battery or the charger is not doing the job at hand.
When the battery drops below 11 volts it is time
to exchange the battery for a new fully charged one or recharge the battery now
attached to the lure machine.