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  •  English > Products > Telecom Operation&Testing > Telephone Line Tester > ST220 Tel Line Tester

    InformationParametersDownloads
    Information

    Key Features:

    DTMF applying to GB/T15279-94

    High voltage alarm

    Low voltage warning

    Last number redial

    Special durable test clamp

    Automatic power off and energy-save design

    Pocket size, simple operation

    Parameters

    Insulation impedance test

    Range(MΩ)

    0~10

    General specifications

    Ring distance (Km)

    ≤1

    Line break resolution (Km)

    ≤3

    Weight (kg)

    ≤0.22

    Dimension (mm)

    146×54×37

    Battery (V)

    9

    Downloads
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