The Ethernet Cable Tester adopts a clear LCD screen that the values are easy and clear to read even in the darkness. Designed with LED flashlight for auxiliary lighting in the darkness. The wire tracker is designed to three modes for to cable, such as digital scanning mode, analog mode and POE mode network toner and probe. Three modes can be switched freely, making it a must-have tool for cable engineers. This meter combines with & cable tester and multimeter functions. This Multimeter function includes DC/AC current, DC/AC voltage, resistance, NCV, continuity, diode, temperature measurement. With Stable performance, high precision, rock solid reliability, a display, and overload protection. The POE testing feature can check cable mapping polarity, voltage of POE network switches, withstand 60VDC, and locate network ports by the flashing light (blinks 2 second) on and switches. Automatically detects and switches between 10M/100M/1000M modes. The measurement area includes line tracking, short circuit test, -point identification and etc. Cable Length Test: This function can apply to different metal cables with at least 2 cores including network cables, telephone lines and BNC cables. The ranges of ET618 is 500M. Only ET618 has the multimeter functions. Tracking buried and wires, detecting cable , locating alarm, sound & computer wires, measuring wire depth, and pinpointing drill sites for engineers. This network cable tester is made of high-quality materials, wear-resistant, corrosion-resistant. and features a LCD display for easy reading, flexible and versatile interface, and an adjustable volume control for loud environments. Both the monitor and receiver feature a lamp to solve the of dark work. The transmitter and receiver are both powered by the 3.7V rechargeable lithium battery, both with low battery indicator. Note: (The batteries and easy-carrying bag are included, which is convenient) Colour:As shown :Metal + Plastic Package Contents: 1 set x underground wire locator 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.