English > Products > Telecom Operation&Testing > Telephone Line Tester > ST230E Telephone Line Tester
Main Functions and Features
Tone/Pulse dialing mode switch
Pause
Redial
Mute
Polarity identify
Adjust the volume
Inside rechargeable battery
Index |
GB/T15279-2002 |
Ring distance (Km) |
≤2 |
Open resolution (Km) |
≤2 |
Monitoring resistance (MΩ) |
≥1 |
Battery |
Rechargeable 9V NI-MH battery |
Relative humidity |
10%~95% |
Environment noise (dB) |
≤60 |
Atmospheric pressure (Kpa) |
86~106 |
Operation Temperature (C) |
-10~55 |
Weight (kg) |
0.5 |
Dimension (mm) |
232*73*95 |