The tone generator and probe kit is made of high-quality materials, wear-resistant, corrosion-resistant, small in overall weight, and easy to carry. The gain is normal 30dB, input impedance is nominal 100M Ohm, 200EP inductive amplifier. Note:The wire needs two 9V batteries(NOT INCLUDED)<br>200EP tone generator wire tracer with probe are widely used in the maintenance of cables and wires. The measurement area includes line , short circuit test, clear/busy/ringing identification. Insulation probe and built-in loudspeaker can effectively avoid short circuits of conductor and make the network toner and probe kit safer to use, essential tool for electricians<br>When used with any tone generator, the professional wire toner probe kit has adjustable volume for identifying and wires or cables within a group without destroying insulation! For non-terminated cables, the clamping method can be used for direct measurements as well as for telephone and network line measurements<br>Electric circuit tracer has spring-loaded ON/OFF button, easy and convenient to operate; Same group cable is recognized in only 1 second; With optional continuous or adjustable generator, the method is simple and the test results are accurate.<br><br>Colour:As Shown<br>Material:Metal<br><br>Package Contents:<br>1set * tone generator and probe kit<br><br>Only the above package content, other products are not included.<br>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.