The ultrasonic dog repellant uses a standard 555 timer IC1 set up as an oscillator using a single RC network to give a 40 kHz square wave with equal mark/space ratio. This frequency is above the ...

The electronic dog repellent circuit diagram below is a high output ultrasonic transmitter which is primarily intended to act as a dog and cat repeller, which can be used individuals to act as a ...

Pet owners beware: this popular squirrel and pest detterent could affect your furry friends. Learn why it's not the safest ...

We just finished renovating our stoop and one or more dogs (or their less than responsible owners) have decided it’s a great place to relieve themselves. Do the dog repellent sprays work or are there ...