Intelligent measuring pen signal strength, large LCD screen, temperature measurement New design, clear display on large screen More safe insulation and electrical measurement, easy judgment of zero live line audible and visual alarm+clearer screen display Single strand wire can be to determine breakpoint, and the breakpoint can be checked in time to the safety of electricity use Switch high sensitivity, conduct safety line checking for partition wall detection, and conduct insulation operation, so that distribution is clear Use high-definition LCD reverse display large screen to display temperature and signal strength color:Black Material:ABS Package Contents: 1 x FY18D induction electric pen Only the above package content, other products are not included. 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.