Compatible with IEEE 802.3 10BASE-T specifications for Ethernet over twisted pair. 

Save on repair time.

The Pin Point indicates if you have a bad transmit pair, a bad receive pair, or reverse polarity

User Controls:(1)Push to Test button Connectors:

(2) RJ-45 jacks 

Indicators:(4) LEDs:Power, Link Status, Receive Data, and Polarity 

Power:9-volt alkaline battery (included) 

Size:3.8"H x 2.4"W x 1"D (9.7 x 6.1 x 2.5 cm) Weight:0.5 lb. (0.2 kg)