Besides the basic functions as a common Tel Line Tester, it has functions of high voltage protection
Payment Terms: T/T
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Common telephone: Dial, Ring, Talk, Redial
Mute
T/P Switch
High voltage protection
Dumbbell shape,
Small size
Easy operation
Solid new materials for shell
Waterproof and vibration proof
Dimension (mm): 232x73x95
Weight (kg): ≤0.5
Environment temperature: -10°C~55°C
Relative humidity: 10%~95%
Environment noise: ≤60dB
Atmospheric pressure: 86~106Kpa
Accessories
RJ11 assistant test cord × 1
0.3a fuse tube x 1