Intelligent measuring pen for signal strength with LCD screen and temperature measurement New design with clear screen display Enhanced safety for insulation and electrical measurement; includes audible and visual alarm for easy identification of live and neutral lines; clearer screen display Capable of detecting breakpoints in single strand wires, allowing timely inspection for improved electrical safety High-sensitivity switch enables safe line checking, wall detection, and insulation testing for clear circuit identification Features a high-definition LCD screen with reverse display to show temperature and signal strength Color: Black Material: ABS Package Contents: 1 x FY18D induction electric pen Note: Other items not included. Note: Lighting and display differences may cause slight variation in color. Measurement error allowance is +/- 1-3 cm.