... RJ45, BNC 2, UL,CE,RoHS certificate Specification:1, Cable tester for Cat 5 and BNC!2, 2pcs transmitter/receiver design to ... on the transmitter unit!4, Transmitter and receiver snap together for transport or patch cable testing!5, Extremely easy to use ... jack.7, On/Off switch to conserve battery power!8, Uses one standard 9 Volt battery (not included). Service:1, Our promise ...