Clear LED Indicators: The built-in LED display clearly shows the PoE status, polarity, and voltage range. Intuitive indicators allow you to easily determine the PoE type and power supply status even in low-light conditions. Quick PoE Detection and Identification: Easily and quickly identify whether a network port or cable is providing Power over Ethernet (PoE). Simply plug the RJ45 connector into port to instantly check the PoE status, without the need for complicated tools or software. RJ45 Interface, Wide Compatibility: The standard RJ45 interface is compatible with most Ethernet switches, PoE power supplies, IP cameras, VoIP phones, and other PoE-enabled devices. Suitable for home, , and professional network installations and maintenance. Supports Passive PoE and IEEE 802.3af/at Standards: For passive PoE systems and standard IEEE 802.3af (PoE) and 802.3at (PoE+) devices. Helps you verify whether network devices comply with the standard PoE protocol or use passive power. Multi-voltage range detection: 24V / 48V / 56V: common PoE voltages, including 24V, 48V, and 56V., Weight: 0.08377565956 Pounds, Manufacturer: Frewurwer