THOR GUARD L25I The THOR GUARD Model L25I Lightning Prediction System receives and evaluates energy data from the Hyperstatic Sensor and displays the hazard level in the "Status" window. When the probability of a lightning discharge exceeds a pre-selected level the L25I will automatically impulse an irrigation or equipment disconnection switch. Although small in size, the Model L25I has the same lightning prediction capabilities as all THOR GUARD products. It was designed to offer a low cost alternative to isolate lightning sensitive equipment from AC power prior to a lightning discharge. At a "Red Alert" level the L25I will energize an internal relay (Type C) through the "OUTPUT" port. When the threat of lightning has passed and the L25I has returned to an "All Clear" condition, the internal relay will automatically be de-energized.