PoE Detector Tool


Product Specifications

Connector Types Female RJ45
Data Rate N/A
Dimensions 2x1x0.75 in
Mount Type Pocket size
Operating Humidity 5% to 90%
Operating Temperature Range -10 - 60C
PoE Method Powered by PoE
PoE Standard IEEE 802.3af, at, 24 Volt Passive, 48/56 Volt Passive, Reverse Mode B
Power Input Not Required
Weight 0.11 lb
  • Does this product display current?

    The PoE Detector isn't used in-line with a powered device, so you cab't use it to test current. If you need this function, please use our PoE Tester.

  • What does a red blinking LED mean?

    Red flashing indicates reverse polarity of 802.3af/802.3at. 

  • What does a flashing green for 8-12 and then flash blue signify?

    This is a very interesting reading as the detector is designed to show a solid green for passive (24volts) or solid blue for 802.3af/at passive. OR a flashing blue for active 802.3af/at. Please contact our technical support team so we can gather more information about your application. Thank you. 512-479-0317

  • Is there a way to tell 802.3af vs at with this device? ~Thanks!

    Since 802.3af and 802.3at are both Active PoE with voltages ranges 44-57, no you cannot tell the difference between 802.3af and 802.3at with this device. 

  • I expected this to have a consistent flash (more frequently) What causes this to flash is it the presence of voltage on certain pins?

    The flashing indicates Active (Auto-negotiated) power on either mode A (1,2-,3,6+) or mode B (4,5+,7,8-).

  • How much current does this device draw?

    This detector draws .05 watts. 

  • What does flashing green mean?

    Green flashing indicates an active negotiation.