Item up for purchase is a Fluke TS44 Pro Buttset.
See pictures for condition, all features tested and unit will shipped with a new 9V battery so it\'s ready to go out of the box. Review my 100% positive seller response and purchase with confidence...The Fluke Networks TS44 Pro telephone test set, available with various line cord connectors to suit specific applications, detects dial tone and polarity; places and receives calls; indicates line voltage and low loop current; has a one-way speaker for hands-free listening and a two-way speakerphone for hands-free conversation during testing; tests POTS (plain old telephone service) quality on live DSL lines without disrupting data services; and stores up to ten 23-digit telephone numbers which can be speed-dialed via the keypad. It provides tone or pulse operation. The test set has two basic modes of operation: talk mode for off-hook operations including verifying dialing and receiving calls, and monitor mode for on-hook operations including checking for an idle line, listening for line noise, and measuring DC voltage on the line. In monitor mode, the test set provides high-impedance monitoring of lines without disrupting service. When switching to talk mode, the data lockout feature tests the line for high-speed data signals and remains on hook and beeps if such signals are detected. The lockout can be overridden to pull dial tone from a noise line. This test set passes a 20-foot (6 m) drop test and has a waterproof case that exceeds American Military Specification MIL-STD-810E. The keypad has 12 standard dialing keys including star and pound, and function keys to store, recall, and redial numbers and to pause for accessing a second dial tone when dialing through a PBX (private branch exchange), among other functions. LEDs on the unit indicate line polarity when off hook, normal or low (below 23 mA) loop current, five different ranges of voltage detected, mute, and battery status. At a voltage greater than 140 VDC, the test set locks out and will not allow off-hook operation. The current LED flashes for 5 seconds to indicate a reading below 23 mA and remains solid for normal readings. The test set is made of high-impact plastic. A spring-loaded belt clip at the base of the unit provides a secure hold on belt loops and D-rings. Additional specifications include various environmental operating conditions. Telephone test sets, also called butt sets, are used by telecom technicians to troubleshoot and maintain copper-wire voice-subscriber lines such as POTS (plain old telephone service) lines.

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