Byte Brothers Power Panel CAT5/6 DVM and Network/POE Tester - Inline Unit
The most popular Power Panel CAT5/6 DVM model has all of the features of the Standard unit plus the ability to connect between 2 devices ("inline"). Inline connections allow passing PoE power to the device... monitoring the device while it is ON. Plus the inline Power Panel measures and displays a power draw (in watts).

Features

Detect network devices, phones and power (PoE)
Network devices: Indicates advertised speed and duplex and pairs
Phones: Indicates voltage amplitude and pairs used
Power(PoE): Indicates voltage amplitude (discovery and full), pairs used (end or mid span) and watts (when connected inline)

Interact with switches and PoE power systems
Force link button: Sends link pulses to prompt communication from network devices.
Test PoE button: Simulates a VoIP phone or camera and prompts PoE power.

Connect "inline" (inline model only):
Connect between 2 devices and pass through PoE power to the device allowing you to monitor an active system.
Measure power draw of the PoE device (in watts)