Prokit's Industries MT-7057 - Manual (Page 18)

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MAINTENANCE
Your 4 in 1 cable tester is a precision test
instrument and, when used as described in this
manual, should not require maintenance .there
are no internal adjustments. Calibration is not
required. To clean the outside of the tester, use a
cloth dampened with a mild detergent solution.
Do not use any abrasive cleansers or chemical
solvents that may damage the case of the tester.
ACCESSORIES
The 4 in 1 cable tester includes the following
items:
 Main unit
 Remote
 Female BNC Terminator
 Instruction Manual
 Carrying Case
The group of products may be discontinued,
models specifications, price or design changed at
any time without notice and without incurring any
obligation.