ST220B telephone line tester - ST220B telephone line tester

a compact telephone line tester combining basic line tester function, auto ring, calling subscriber, checking line pair - more info check here: http://www.buymeasuringtools.com/ST220B-telephone-line-tester-10214671/

Quick Brief

Place of Origin: Shandong China (Mainland) Brand Name: Senter Model Number: ST220B telephone line tester

Product Features:

a compact telephone line tester combining basic line tester function, auto ring, calling subscriber, checking line pair

Business Terms:

Payment Terms: T/T

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Specifications and Product Details:

Main Functions

Telephone functions (Dial, redial, talk and hook)

Fault tests (Insulation test, line break test and earthing test)

Checking wire pairs

Call subscriber & talk

Pulse/Tone dialing

Low battery check.

Key Features

DTMF applying to GB/T15279-94

High voltage alarm

Low voltage check

Last number redial

Special durable test clamp

Automatic power off and energy-save design

Pocket size, simple operation

Technical Specifications

Insulation resistance 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