Brief Introduction

ST230D Tel Line Tester is a new kind of line fault tester with safety &multi-functions capabilities. Besides the basic functions as a common Tel Line Tester, it also has functions of high voltage protection and polarity indication, and so on.

 Main Functions

 1. Common telephone function: Dial, Ring, Talk

 2. Mute

 3. T/P switch

 4. High voltage protection (by fuse)

 5. Polarity indication by LED 

 6. Volume adjust

 7. Pause

 8. Store phone number

 9. Monitoring function

10. Last number redial 

11. Telecom Line Identifying (Telephone line, ISDN line, ADSL line)

Key Features 

1. Dumbbell shape, small size, simple operation

2. Special Dumbbell shape design

3. Small size

4. Easy operation

5. Solid new materials for shell

6. Waterproof and vibration proof

Dimension & Weight
1. Dimension (mm): 232x73x95

2. Weight (kg): ≤ 0.5

R&D dpartment

Producing Line 

Testing Room:

Package:

Certificates :

 Transportation

All available shipping ways could be applied. by express,air . 

Appointed shipping company or our own forwarders all could be used in shipment. 

Full-way tracking the items for you before the goods arrive 

Contact us 

We highly appreciate your any enquiry by email, or instant message ,

We will reply your email within 12 hours .

please feel free to call us at any time if there is any questions.