Telephone Test Set

Model BS-100

Features:
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Mega Ohm mW Meter for Testing Insulation Resistance and Determining Line Conditions without Help from the Central Office.
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High Impedance Monitor Mode so not to Disrupt Conversation or Data Transfer.
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Other Convenient Functions Include: Last Number Redial, Hook and Flash, Speaker Phone, Mute, Polarity Check, Battery Check, Touch Tone, and Pulse Dialing.
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Made of High Impact Material for Shock Resistance.
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Tests Cords Uses Piecing Pin and Angled Bed of Nails (ABN)
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9V Battery Included.