THOR GUARD Sensor The THOR GUARD lightning warning system is comprised of two essential elements. The first, the "Hyperstatic Sensor" assembly, constantly monitors the electrostatic field from its typical location on the top of a structure. The primary coverage area for this system is calculated using a radius of 2.5 miles (5 miles in diameter). The total area being monitored, however, is a range that is adjustable to a maximum of approximately 15-miles in radius. The sensor communicates the data over special cable to the second element, the THOR GUARD computer console (Models L150,L50, L100, THORGUARDIAN & L25I). The computer evaluates the information fifty times every second within its integrated circuitry and produces two important potential lightning threat levels. The first is called the Lightning Hazard Level, or "LHL." The "LHL" represents the threat of lightning potential in the total area being monitored (Note: All THOR GUARD systems are accurate to 1mv at 15-miles). For certain THOR GUARD models (L150,L100 & MAC) this is represented numerically, on a scale of one (1) to nine (9). The second important lightning threat level is called the Dynamic Index, or "DI." The "DI" represents the lightning threat in the immediate area being monitored. This value is ascertained by relating the overall "LHL" level to local shifts in positive and negative energy. As above, the "DI" threat level is represented numerically, on a scale of one to nine. Other data processed within each system is lightning strike information (Field Collapse Count, or FCC), bolt out of the blue alerts, a 24 hour self-testing program, and an automatic reset timer measuring significant energy level exchanges during storms. All THOR GUARD console models evaluate basic storm data, developed by the sensor, in the same way. The major difference between selected models is in how the information is either interpreted, or displayed. Please refer to the individual product specification sheets.