Features: Adopt LCD intuitive display screen for you to see the data more clearly, and with three modes for you to switch freely: POE mode, digital mode and analogs mode.POE testing function: This tool can be used for testing standard and non-standard POE device, it can also test POE voltage, power supplys polarity and power supplys mode.Voltagee test function: You can click "V" to enter the voltage test function, which can measure the battery voltage and voltage polarity and you can press "V" again to enter the POE test mode. You can measure the POE power supplys and voltage.Adjustable sensitivity: when receiving signal is strong, turn down the sound gear;when receiving sianal is weak, raise the sound gear, which can give you a more testing data.With LED flashlight function, you can turn on the flashlight in time when the light is weak or when you use it at night, so that you can use it normally in a dark environment.Specifications:Type: ET613Power:Transmitter: 3*AA battery (NOT INCLUDED)Receiver: 9V (NOT INCLUDED)Analogue cable tracing: YesDigitalized cable tracing: YesTracking cables with PoE support: YesIdentify wire pairs & of wire connections: YesBattery voltage polarity checking: YesBattery Voltage measurment (for reference only): YesPoE voltage polarity checking: YesPoE Voltage measurment (for reference only): YesSplit pair: YesBreakpoint checking: YesContinuity test: YesTracing signal transmission distance: 3KmOutput signals level: ~15Vp-pVibration indication: ONLY ET613Flashlight: YesLoudness adjustable: YesLow battery indicator: YesMaterial: Plasticcolour: As shownPackage Contents:1 x Transmitter1 x Receiver3 x CablesOnly the above package content, other 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.