Designed for network professionals, the Professional PoE Network Tester is a compact and reliable tool that helps verify and troubleshoot Power over Ethernet connections. It supports detection of IEEE802.3af/802.3at standards, and offers inline power testing to check voltage, polarity, and crossover. Cable continuity testing helps identify shorts, opens, and crossover wiring issues, while loopback testing verifies switch loop circuits. For added convenience, the built-in lamp allows use in low-light environments. This tester is RoHS, FCC, and CE certified for safe and reliable performance.