Enjoy infinite usage with no need for charging or replacing batteries. Our PoE tester draws power from line when in use, making it completely self-sufficient. guesswork and safely and efficiently check for voltage and compatibility before installing your device. Test PoE cameras, VOIP phones, and WiFi installations without interrupting data . Quickly detect and identify PoE type, measure power consumption from DC power supplies, and activate any port on an AF/AT/BT PoE switch. New, ergonomically curved body design is now 25% smaller, making the GEN2.5 easier to hold and use in every situation. Pocket-sized, this PoE tool is easy to stow away when not in use. Activate "" mode to PoE switch, allowing you to effectively test your devices. Utilize as a powerful tool for diagnosing PoE problems and easily observing loss in the Ethernet cable. Our PoE tester detects how much power any PoE or DC powered device requires. Bonus Feature - It also measures DC power supply voltages from 3.5 to 56 volts and current up to 280 at 56 volts. Displays Mode A & Mode B from 20v to 56 volts. LED display is bright, clear and easy to read., Weight: 0.2755778275 pounds, Manufacturer: Gishbjka