Tempo Communications Telephone Test Set TM-500

Test Set, Adapters Included RJ11, Connector Type ABN, RJ11, Data Safe Monitor Yes, Dialing Method Pulse, Tone, Features Speed Dial Memory, Volume Control, Mute, Pause, Flash to Generate a Timed Break Recall, Over Voltage and Over Current Protection, Number of Digits 32, Testing Functions Hi-Z Monitoring, Line Polarity Indication, Includes Headset, Waterproof No