Tempo Communications, TM-700, 52061409 Tele-Mate Telephone Test Set with ABN Bed of Nails Croc Clips and RJ11, DSL Compatible, LCD ScreenFeatures:Designed for comfortable shoulder placement. Operate in either hand, clip onto the belt, or use hands free.Allows alerting and talking over a dead pair of wires.A built-in pair tracing toner is provided. The frequencies chosen are suitable for use with Greenlee probes, as well as any other probe that works in the audio range.Make many jobs hands free.Advanced silicone rubber keypad glows after exposure to light, aiding operation in low light conditions.LCD for easy dialing, programming, caller ID, voltage, current, ringing, and DTMF measurementsSafe over voltage and over current protectionIntercom for dead-pair talkingSmartIntercom between Tele-Mate Pros (including PE830); allows ringing the far endTone generator for pair identificationLuminescent (glow-in-the-dark) keypadDSL line filterSuper Impedance Amplifier to monitor lines without disrupting trafficThe Tempo Communications Communications TM-700 helps technicians install, service, and maintain voice services with ease. DSL compatible in both Monitor and Talk modes, the TM-700's LCD screen makes reading polarity, voltage, current, and ringing frequencies easier than ever, and clearly shows speed dials and recent numbers for faster access.The TM-700 features over-voltage and over-current detection for safer operation and also features an intercom mode, a built in toner for pair tracing, and DTMF detection and measurement for enhanced productivity. Use the built in loudspeaker or with a headset (included) for easy hands free operation.The Tempo Communications Communications TM-700 makes your job faster, safer, and easier.