Shock sensors are intrusion detection devices designed to detect a glass break big enough to reach, crawl, or walk through. Shock sensors aren’t rated to detect cracks, bullet holes and other small holes, removing windows, or entry via glass cutting without breakage. All Glassbreak sensors should be backed up by interior protection. Laminated Glass will reduce the specified range. Test carefully to ensure maximum detection. Armor coated glass and plexiglass will reduce specified range by 50%, from a 10' radius to a 5' radius. This shock sensor is self powered and therefore will not effect battery life for wireless transmitters.