Scare MAXI for kuna, tube, rodent, outdoor surfaces, 303/4X repro
Maxi ultrasonic scare pests and insects, proven new 2015.
This maxi scare is effective in scaremice, rats, cunes and tchor.

Laboratory research has shown that certain ultrasonic sound waves attack the auditory and nervous systems of most common pests causing them pain and discomfort. 140 decibels of sound pressure. Pests give up their food source, water and shelter and try to leave the area where ultrasound is present. The device emits refined, irregularly long, ultrasonic waves with irregularly long breaks
These highly intense sound waves are outside the range of hearing people and most pets such as dogs, cats, fish, birds and livestock. You can hear the peeling in the speakers, which is due to the speaker's membrane coming across the air, creating a crackle. The speaker is fully squid, but our human ear can't hear the oscity. Children under the age of 20 can hear the given penetrating tones within 1m of the device if it is appropriate to put the device out of their hearing range.
So the technology does not harm cats, fish, birds and farm animals.
The device, i.e. our plasicka has no control parts, it works autonomously. Only connect the appliance to the mains and turn on the power switch. Side red black contacts are of a service nature. If it is included in the description, the instructions indicated that the terminal block contains an audio output signal. Its use is to connect other external speakers – "piezo" is listed and the name of the goods also contains + 2 piezo.  

Specifications:
Power supply: 220 to 240 V ~
Weight: 940 g
Power consumption: 15W
Frequency range: 20.000 Hz to 45.000 Hz (continuous)
Sound pressure output level: 140 dB / per speaker x 4
Coverage: effective coverage can be 400 m2
Temperature range: -20°C to +50°C
180 degrees ultrasonic pest Repeller
The technology is designed for indoor and outdoor use, without direct access to water or rain. It is advisable to put it under the stribe so that the water does not flow in and does not freeze in winter. 
24/7 operation of the device does not stop!
Although the manufacturer states:

Warning: do not use without supervision. (We know from experience that this is already the standard that prevents the manufacturer from doing something, but you can use it without supervision, even continuously. We don't have the know to make anything happen or something burn out. We listed the manufacturer's warning from the instructions of course we can not delete. The device has a consumption of about 5/15W, so you can keep it plugged in.)