Line Tester (ST220)

Features:

1. DTMF applying to GB/T15279-94

2. Dialing number display

3. Checking wire pairs function

4. Dangerous voltage alarm

5. Test line insulation, break faults

6. Low voltage warning, automatic power off and energy-save design

7. Small size, simple operation

Insulation impedance test:

Range (Mohm) 0~10

General specifications

Ring distance (Km)       <1

Open resolution (Km) <2

Weight (kg) <0.22

Dimension (mm) 146*54*37

Battery (V) 9