Home > Products > Telephone line Tester-Lineman test sets > ST220B mini butt set/basic telephone line tester
ST220B mini butt set/basic telephone line tester
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Product Details
| Place of Origin | Shandong, China | Brand Name | senter | |
| Model Number | ST220B |
Product Description
Brief Introduction
ST220B 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 portable, handheld tester to the lineman.
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 |
Contact Us
- Shandong Senter Electronic Co., Ltd.
- Contact nameAnthea Liu Chat Now
- Phone86-533-3589257
- AddressNo.98,Wanjie Road, New&Hi-Tech Area, Zibo, Shandong, China, Zibo, Shandong
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