Understanding what data and power are on a Cat5/5e/6/6a/7/8 cable is becoming increasingly important as cables are becoming crowded with a wide variety of both data devices and power sources. In fact, knowing what is on a cable before plugging in can protect valuable equipment and speed up new installations. The Triplett/ByteBrothers POEILT Power Panel Cat5/5e/6/6a/7/8 DVM is the right tool at the right time because once connected, it goes to work scanning each pin on a connector and displaying both the activity and the pair location (Network devices, phones or Power over Ethernet). And, if you are a VoIP phone of IP camera installer, you will find the POE1ILT particularly useful because you will know if there is power and a data pair available for your equipment.... exactly what you need to make your device operate. The POE1ILT Power Panel CAT5/6 DVM Tester is the perfect tool for detecting active network devices, power for VoIP phones, IP cameras and other devices on RJ45 jacks and cables. Once connected, the POE1ILT goes to work scanning each pin on a connector and displaying both the activity and the pair location. Whether it be network devices, phones or Power over Ethernet, all is displayed. And, if you are a VoIP phone of IP camera installer, you will find the POE1ILT particularly useful, because you will know if there is power and a data pair available for your equipment - exactly what you need to make you device operate. In addition, the POE1ILT Power Panel has the ability to connect between two devices ("inline"). Inline connections allow passing PoE power to the device monitoring the device while it is on. In addition, when placed inline between two devices, the power draw of the device can be measured in watts. Too much power draw is the number one reason for IP/PoE network failure. It also includes a full-featured, filtered tracer probe. The probe is used as a wire locator to audibly trace the wires connected to the Power Panel main unit. It features a tone button, volume control, ultrabright LED lighted tip, and 2 status LEDs to visually identify the tone and the other to warn you that there is 6hz present in the area. The probe has a built-in filter to minimize fluorescent hum. Includes RJ45 cble, case, 9V battery, and tracer probe.