BSIDE MS6812 RJ11 \u0026 RJ45 Telephone Line Cable Tracker, Including Sender \u0026 ReceiverThe product is shipped based on the color or size of the main image of the product page.Product description: This set of tools can be used for the installation, inspection and maintenance of various cable lines, and for the telephone line, it can judge the various states of the telephone line in operation, and is more convenient for the installation, debugging and maintenance of the telephone line. It works without letting you break the insulation of the cable. This set of tools includes a transmitter (sender MS6812-T) and a receiver (receiver MS6812-R). Features: 1. Determine if the cable line is continuous. 2. Track cable lines and identify where the line is broken. 3. Receive audio signals from the cable line (telephone line). 4. Determine the status (idle, ringing, off-hook) in the working telephone line. 5. Send a single audio or dual audio signal to the target cable line. Technical Parameters: 1. Audio signal: 1.5KHz. 2. Receiving frequency range: 100Hz-300KHz. 3. Battery supply: 9V (6F22) x1. 4. Receiver size: 238x43x26mm, transmitter size: 145x35x25mm. Packing List: Receiver x 1 Transmitter x 1 Instruction manual x 1 Bag x 1.The YY team is at your service and we hope you enjoy your life