ST230F TELEPHONE LINE TESTER
4
3. Main Functions and Specifications
DC V test
Range: 0
～
260V
，
Error: ±5
％
Insulation impedance test
Range: 0.1~10MΩ, Error: ≤±5
％
±0.1 MΩ
Range: 10~30MΩ, Error: ≤±10
％
±0.5MΩ
Induction voltage function
Ring distance ≤ 2Km
Open line resolution ≤ 2Km
Monitoring resistance ≥1MΩ
Caller telephone number display, FSK/DTMF auto compatibility
DTMF applying to GB/T15279-94
Dialing number display
Hands free (louder speaker) function, which can free your hands to do other operations.
Telephone number storage and dial function
Data lockout override function
Mute function
P/T transfer function
ADSL/ISDN identification
High voltage indication
Checking wire pairs function as the cable tracker
Battery: rechargeable 9V NI-MH battery
4. Dimension & Weight
Dimension
（
mm
）
: 232×73×95
