Prokit's Industries MT-8002 - Manual (Page 9)

Battery
MT-8002 Telecom test set use 3 x 1.5V AAA batteries as power source. (Which
are not include in this package) The estimate batteries life is about 6 months.
To replace the batteries (see Figure):
1. Disconnect all the test probe.
2. Place the test set on a work surface, face down. The work
surface should be nonabrasive.
3. Remove the battery door cover and the old batteries from
the test set. Properly discard the battery.
4. Insert 3 new 1.5 Volt AAA size batteries. Make sure the polarity
is correct.
5. Replace the test set’s battery door cover on the test set.
Note: If the test set fails to operate properly at any time,
first replace the battery and retest before sending the test
set in for repair.
If the MT-8002 stops working, replace the batteries first. If it still doesn’t work,
contact Pro’sKit authorized distributor.
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