Yuyao temperature instrument factory limited liability company recently to Jiangxi is a key project to provide a XMDL intelligent multi-point temperature detection and recording system for shaft well, nearly 200point temperature detecting and recording, due to the adoption of digital temperature sensor and a new dedicated software,200temperature sensors and the host is connected with only one ordinary three core the furthest distance line, detection of more than 800meters, with more than 10 days condition detection using, demonstrated that the system error was 0.5 degrees, good anti-interference ability, printing clear, fully meet user requirements.