Hunt instrument check line Zhengzhou lowest price is how much? Emi [Zhengzhou] Zhengzhou City, instrumentation Megumi Instrument Co., Ltd. Contact: Mr Zhu 13017693918 Tel :0371-66227105 QQ: 625132122 Address: Zhengzhou City, South Street, West Street intersection (Tube City Commission southward 300 m) official website: www. 91-17.com Product Description: This set of tools can be used for a variety of cable line installation, inspection and maintenance, and for the telephone line, the work can be judged in various states of telephone lines, telephone lines more convenient installation, commissioning and maintenance work. It works when you can so you do not damage the cable insulation. This set of tools includes a transmitter and receiver each one. Detailed Features: · determine whether continuous cable lines. · Tracing cable lines, as well as discriminating circuit breaker location. · Receive cable lines (telephone line) of the audio signal. · Determine a working phone line status (idle, ringing, off-hook). · Send a single or dual audio cable audio signals to the target line. Audio signal: 1.5kHz · Receiving frequency range: 100Hz-300kHz