ABOUT DETAILS - The gain is norminal 30dB, the input impedance is nominal 100M Ohm, and please notice that wire tracer needs one 9V Battery(NOT INCLUDED).
MEASURING RANGE - Measurement categories include line tracking, short circuit testing, clear/busy/ringing identification. Selectable continuous or variable tone generator
CLAMP MODE - For non-terminal cables, clamp mode can be used for direct measurement, as well as for telephone and network line measurement.
HIGH ACCURACY - With optional continuous or adjustable generator, the method is simple and the test results are accurate.
AVOID SHORT CIRCUIT - Built-in speaker tube on the probe, insulation probe and built-in loudspeaker can effectively avoid short circuit of conductor and make it safer to use.

Colour:Gray-White
Material:Plastic + Metal

Package Contents:
2x wire tracer
2x connector
2x accessories
2x canvas bag
2x English manual