The Gladiator Microwave Switch from Hawk Measurement provides a high-power, circulator-polarized microwave pulse that is emitted from the sending unit to the receiving unit in a transmission chain of approximately 100 pulses per second. It uses high-power digital microcontroller technology to achieve sensitivity and reliable output under adverse conditions. Used with Hawk’s software, the unit detects a signal even with buildup in an acoustic and electrically noisy environment. 978/304-3000; www.hawkmeasure.com