3 Star ADV5052 Mini Butt Set Telephone Line Tester
line fault tester with safety & multi-function capabilities. This device features an energy-saving design with automatic power off and can be used as common phone. Additional features include High voltage alarm, Low voltage warning and Last number redial. Installers will love its pocket size design and simple operation.
There are some things you just can't do with an ordinary telephone. This linesman's butt-set is a professional tool for troubleshooting and diagnosing telephone line problems. Coupled with either Modular Plug Breakout Adapter (above), you can connect to any pair of phone wires in any modular jack, 66 punchdown block, demarc block, etc. Test for no CO line, no dialtone, open line, shorted line, etc...
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