Description
ST220B telephone line tester is a compact telephone line tester combining basic line tester function, auto ring, calling subscriber, checking line pair and high voltage protection. It is rather a good po able, handheld tester to the lineman.
Main Functions
· Telephone functions (Dial, redial, talk and hook)
·Fault tests (Insulation test, line break test and ea hing 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 D
Dimension (mm) :146×54×37
Battery (V): 9
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India
