Sentences with phrase «emit ultrasound pulses»

The room also has video cameras and a grid of beacons on the ceiling that emit ultrasound pulses denoting their location.
Longer - lasting underwater pings Flight recorders carry an underwater location device that emits an ultrasound pulse once a second for 30 days after it is submerged.

Not exact matches

The SonicGuard Ultrasonic Repellent from Gen7Pets is an ultrasonic tick and flea protection device that emits a series of ultrasound pulses that are harmless and imperceptible to humans and animals but repel ticks and fleas.
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