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