2009 Annual Reference File

摘要

VMAC rotary-screw air compressor systems are designed to save space, time and money. The lightweight, compact systems range from 40 to 150 cfm.rnThe Super Quad-Blaster with Strobe repels unwanted birds using ultrasonic sound paired with a powerful flashing strobe. Four Piezo ceramic speakers project powerful ultrasonic waves in an overlapping fan pattern for 360-degree coverage. The frequency level irritates birds but is inaudible to humans.