A must-have companion for any IT pro. This pocket-size PoE Detector indicates the type of PoE on a cable using bright, easy-to-see LED display lights. Quickly detect and identify IEEE 802.3af/at, 24 volt passive, and even reverse polarity Mode B for Cambium or Canopy. Ergonomically designed, the POE-Detector fits comfortably between two fingers while allowing for rapid cable testing on the RJ45 input. And no need to worry about battery life, the PoE Detector is powered by PoE.Key Features Quickly detect IEEE 802.3af, IEEE 802.3at, 24 Volt Passive and Reverse Polarity Mode B Ergonomic and small for easy carry and use - great for any IT professional Bright LEDs with easy to read indicator chart located on the product PoE Powered inline device - No batteries necessary