This meter combines with cable length tracking and measurement functions. The advantage of this meter is the long tracking distance clear sound signals fast and precise measurement of cable length. The meter is a practical tool for laboratories, factories, radio network installers and technicians. It can measure in real time the length of the network cable, short circuit and circuit break. The cable tracking function can quickly and effectively find the target cable in a large number of cables. This feature can be used in telephone systems, computer networks, BNC cables and other metal network cables. Characteristics: Cable Tracking Function: The cable tracking function can quickly and efficiently find the target cable in a large number of cables. This feature can be used in telephone systems, computer networks, BNC cables and other metal network cables. Cable Length Test: This feature can apply to a variety of metal cables with at least 2 cores, including network cables, telephone lines, and BNC cables. POE test: POE testing can check the polarity of cable mapping and the voltage of POE network switches. Multifunctional Cable Tester: This cable tester has the function of analog tracking, cable mapping, PoE voltage measurement, digital tracking sensitivity adjustment, etc. LCD Display with Flashlight: The sender of this line finder adopts a large LCD screen to provide a better experience, and the flashlight allows you to turn it on when the light is dim. Multimeter function: this function includes DC and AC voltage measurement and current, resistance, continuity, diodes, temperature measurement (ET618 only). ET616/ET618 Optional: There are two different types to choose from. The measuring ranges of ET616 network cable length are 400M, and ET618 ranges are 500M. Only the ET618 has multimeter functions. Technical data: Material: ABS Type: ET616/ET618 (optional) Analog Tracking: √ Switch Tracking (with PoE): √ Cable mapping: √ Switch indicators flash: √ Noiseless Digital Tracking: ET616: Digital ET618: Digital/Vibration PoE Voltage Measurement: Voltage Polarization Analog Bargraph: √ NCV detection: √ Measurement of network cable length: ET616: 400M ET618: 500M Power: Host: built-in lithium battery, 1250 mAh (included) Package Weight: ET616: 490 g / 1,1 lb ET618: 585 g / 1,3 lb Multimeter Specifications (ET618 only): DC voltage: 400mV-1000V (0,8%and3) AC voltage: 4V-400V (1,5%and5) Constant Current: 1,0A - 10,0A (1,2% and 4) AC Current: 1,0A - 10,0A (2,0%and5) Resistance: 200Ω -20MΩ (2%and6) Continuity: buzzer sounds andlt;50Ω Diode: √ Temperature (type k): -20-1000°C (2,0%and15) Note: The ID pairing function is implemented za using a remote ID mapping accessory, you need to buy this accessory yourself; separately, this accessory is not included in this kit. ET618 Packing List: 1 x Host 1 x storage bag 1 x Receiver 1 x User Manual 1 x Clip Line Testing 1 x network cable 1 x charging line; 1 x Temperature Probes 1 x Multimeter Probes