Signal line break -make detection device

The utility model discloses a signal line break -make detection device, which comprises a body, this internal power that is equipped with, the body outside is equipped with plug and UNICOM's switch respectively, and connector assembly in the socket of the product that awaits measuring, UNICOM's switch are connected in the signal line subassembly of the product that awaits measuring, are connected with the pilot lamp of the signal line one -to -one of a plurality of and signal line subassembly between power and the plug, and power, pilot lamp, plug, socket, signal line subassembly, UNICOM's switch connect gradually and constitute detection loop to through the bright of pilot lamp and the judgement of going out the expert of signal line subassembly signal line is with disconnected. The utility model discloses with power, pilot lamp, plug socket, signal line subassembly, UNICOM's switch connect gradually and constitute detection loop, can whether the bright signal line that determines the signal line subassembly break off through the pilot lamp, set up a plurality of pilot lamps moreover, and can be simultaneously detect the break -make of the all signal lines of signal line subassembly, have the characteristics that check -out time is short, work efficiency is high.