LINESMANS TEST SET BUTT PHONE
Offer the lastest in integrated circuit design, provide the industry standard packed with popular features. Talk/Ring/Monitor three kind of tests function, its switch located on inside of handgrip. Switchable tone or pulse dialing. TONE/PULSE switch are located on inside of handgrip. The Hi impedance monitor will not disturb data, conversation, or signaling. LED indicates reversed polarity. Last number redial(31 digits maximum).