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 ...

3 POWERFUL ULTRASONIC SENSORS: This bark deterrent device there are two types of ultrasonic frequencies, Avoid dog getting used to single frequency, It can emit 25KHZ fixed frequency and 25-30KHZ ...

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 ...

LEWISTON, NY - An unintentional release of dog repellent is to blame for several Lewiston postal workers falling ill Wednesday. The call came in at shortly before 8 A.M. at the 8th St. facility. Many ...

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 ...