This is the emission of sonic waves. In principle, they do not differ from those emitted when listening music on a mobile phone, watching TV, hearing voices. But there is a detail - ultrasonic frequency is above 20 kHz, in this particular case, it ranges about 50 kHz. Whereas the range of human hearing is at most up to 20 kHz, on average it does not exceed 18 kHz. In other words, the frequency is 2-3 times higher than that a human can hear. That is the tricky part. And it is not just human but also cats and dogs who will be safe. Within a week of testing PEST VENATOR, the cat remained absolutely indifferent and the ultrasonic sound did not bother it at all. Also, ultrasonic sound is safe for other domestic animals such as hens, cows, and pigs. Therefore, you can safely install an ultrasonic pest repeller in a hen house or standing stall. Specifications - Frequency Range: 24-84KHz - Power: - Input Voltage: AC90-250V - Effective Coverage Area: 120-150Sq. Meters. 1 unit Features √100% kids & pets safe, eco-friendly, odorless, noiseless and no radiation √Repel mice, cockroaches, mosquitoes, spiders, bugs, ants and most of the indoor pests √2018 Upgraded Version, intermittent changes of repellent ultrasound frequency √Nightlight Feature: provides a soft glow in the darkInstallation 1. This machine should be installed at 30cm away from the floor and should be vertical to the floor and plug to the outlet. 2. The installing point should be avoided to be in the back of the curtain, fridge, and any other furniture that deterring or attaching frequency. 3. It's normal that the mouse and vermin will increase at the beginning of the using days because they are getting away from the living place after ultrasonic. Normally, it could take 3~4 weeks to notice results.
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