A non-intrussive monitoring terminal that monitors operating states of an irrigation system and transmits related data to a remote irrigation monitoring system. The monitoring terminal may be installed on any irrigation system without connecting to the irrigation system's existing control system, electrical system, or water distribution system and includes a housing that may be attached to a water pipe or other component of the irrigation system； a sensor mounted in the housing that senses vibrations of the irrigation system and generates a corresponding sensor signal； and an electronic circuit electrically coupled with the sensor to evaluate attributes of the sensor signal to determine operating states of the irrigation system.
