The SRPG2 combines quad PIR technology with advanced dual-tech glassbreak technology. This will provide a time saving, cost effective alternative to installing two seperate devices. The glassbreak portion uses a unique phased frequency circuitry which allows detection of both shock and glass breakage creating a high level of immunity to false alarms. This detector is combined with our PIR containing Crystal Vision technology. This technology is known to be five times more efficient than a traditional "soft fresnel" lens.