1. The function of checking cables: fast find out the twin cables in need among so many cables in no time (hint of
sound, at the same time, has high shine glitter of induction indicator light)
2. Sensitive: induction distance less than 20 mm, strong anti-jamming ability
3. The function of verifying cable: can fast test the basic physical connecting feature of open、short and cross etc
(emitter and receiver can show line state at the same time)
4. Cable state testing:
a. line DC detecting and anode, cathode determinant
b. bell signal detecting
c. open, short and cross testing
5. Volume Regulate Function: accord needing regulate the sound magnitude when using
6. The function of speed regulating: choice speed on testing
7. The function of speed and frequency changing: choice speed on testing; choice frequency on looking
8. Earphone Function: in the noisy occasion, can draw on it