THOR GUARD L125 The THOR GUARD L125 utilizes our proprietary atmospheric electrostatic analysis to predict the probability of a lightning discharge within a defined area. The hyperstatic sensor connects to the L125 allowing instantaneous evaluating of the energy. The LCD indicates the storm hazard level. When the probability of a lightning discharge has exceeded your pre-selected safe level, the L125 will activate an optional LED light. Our custom software THOR PC, which has been designed to display lightning prediction data and warnings on your computer is provided. THOR PC provides a graphic display and the saving of historical data from storms for future reference. The combination of a THOR GUARD L125 and THOR PC make perfect companions for THOR GUARD Weather, our own internet weather data subscription service. No one can surpass our timely lightning warning and weather data delivery. All available only from THOR GUARD.