FBUT3813 Repellent device 90DB 20khz ultrasonic Speaker

Piezo Buzzer (Piezoelectric Buzzer) is with circuit inside model.internal drive type.

Rats, bats such animals communicate with ultrasound, rat auditory system is developed, the ultrasonic wave is very sensitive and can judge the source of the sound in the darkness, his pups when threatened to 30-50 KHZ ultrasonic, without him only when they can be sent by ultrasonic wave and echo back to the nest (foreign references: Allin and anks1971: Carden and Hofer, 1992), comes across the crisis when adult mice in emits an ultrasonic for help, happy during sex can also emit ultrasonic said,

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Model No	FBUT3813
Rated Voltage(Vrms)	5
Operating Voltage(Vrms)	10max.
Soud Output(dB)	90min.
Resonant Frequency (Hz)	20000±500
Operating Temperature(℃)	-20~+70
Storage Temperature(℃)	-30~+80
Weight(g)	6

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