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 ...

This ultrasonic dog repeller circuit will chase away angry dogs. It is build with the all known 555 circuit, a buzzer and a little ferrite transformator. The ultrasonic frequency must be set with a ...

Starting next week, Bend Utility Department field staff will carry Halt! dog repellent to keep staff and dogs safe in the unlikely event of an aggressive dog attack. “On occasion, our staff access ...

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 ...