1. Telephone line fault checking
2. Monitor, ISDN/ADSL identification
3. Hand free function(two speak ways, loudspeaker)
4. Calling number displaying
5. One Key override lockout function Data lockout override function
6. Tone/pulse transfer function
7. High DC voltage indication
8. High AC voltage alarm
9. Low voltage self-checking, automatic power off and energy-save design
10. Memory key(10 groups of 18 digits)
11. Telephone functions（Dialing, Receiving, Redial）
12. Caller telephone number display
13. Telephone number storage and dial function
14. Mute function
15. Tester test (AC V & DC V test, Insulation test, Open line test, Earth insulation)
16. Call user & talk
17. Check wire pairs
| DC V test | |
| Range (V) | 0-260 |
| Error | ±5% |
| Insulation impedance test | |
| Range (MΩ): 0~10
Range (MΩ): 10~30 |
Error: ≤±5% ±0.1 MΩ
Error: ≤±10% ±0.5MΩ |
| General specifications | |
| Ring distance (Km) | ≤ 2 |
| Open resolution (Km) | ≤ 2 |
| Monitoring resistance (MΩ) | ≥1 |
| Temperature (C) | -10~55 |
| Weight (kg) | 0.5 |
| Dimension (mm) | 232x73x95 |
| Battery | 11.1V, 620mAH Li-ion chargeable battery |
| Relative humidity | 10%~95% |
| Environment noise (dB) | ≤60 |
| Atmospheric pressure (Kpa) | 86~106 |
Application：Used for tel line testing line man set
After-Sales Service：1 year
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