Aspectek--Yard Sentinel RC

r remote control * Weather Resistant * Battery or AC Powered (AC Adapter Included. Batteries not included) PESTS: * Rodents * Birds ...

Bird-X YG Yard Gard Ultrasonic Animal Repeller

fallout uses YardGard technology which is activated by an infrared motion sensor when a pest moves into its arrange. What happens after this is that ...

Technicide-The Exacticide "battery powered duster"

Jim explains the Exacticide, the battery powered duster, Pest Hold back equipment. Uses are to kill roaches, bed bugs, ants, crickets, insects etc.

Dog repellent

The electronic dog shocking figure below is a round ultrasonic transmitter cultures anticyclone which is primarily intended to act as a repellent for dogs and cats who may be accustomed to people to act as a team against some animals. It should NOT be invoked as a justification against aggressive dogs, but it can help reassure them or bother to go away and do not mark it as a repellent electronic pest.

The ultrasonic dog repellant uses a type of 555 timer IC1 implemented as an oscillator using an RC network to give a distinguished 40 kHz ripple honest with the same tag / gap ratio.This frequency is above the threshold for human hearing but it is known to be irritating frequency for dogs and cats.

Since the extreme noise in the reservoir 555 may be a timer 200mA an amplifier of the ramp was needed so a violent power H-cross the network was designed, consisting of 4 transistors TR1 to TR4. One form of substitution timer IC2 a buffer amplifier which feeds an input of the H-driver communicate with a waveform reversed with productivity IC1 be applied at the entrance next to the H-cross. Circuit probing links trumpet allies....

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