1. This can be realized using clamps or special pressure plates . 2. More complex lever-operated and pressure plate -triggering trap components are available. 3. The vertical position of the pressure plates is usually controlled by an adjustment screw. 4. Forty-two pressure plate IEDs and one Hybrid RC-IED were reduced from sixteen different locations. 5. The mine used a spider pressure plate that makes it resistant to blast overpressure. 6. The vehicle lurches forward over the pressure plates in the floor activating the booby trap. 7. Its full-size keypad uses a series of backlit, chemically etched pressure plates rather than conventional keys. 8. The Tellermine consists of a circular pressed steel main body with a large central pressure plate . 9. This contrasted with the Kodak system which had a plastic pressure plate built into the cartridge. 10. The mine uses a metal grid instead a pressure plate , this gives it resistance to overpressure.