Kemo M048N Ultrasonic Generator Repels Animals, Birds and Insects. For Connecting Piezo Speakers. For Mounting in Storage Rooms, Kitchens, Warehouses, Gardens

This attached to a tube is a great dog deterrent works a treat. Between 5 and 6 on the dial shuts up the yapping yourkshire terriers 😂😂

A very noisy neighbours dog that would not stop barking. This little beauty drove it nuts! Thank you

Comes ready assembled, easy to use. -shame you cant get into the unit as it is sealed (ie if ever to replace the short leads). Connections are clearly printed on the unit for easy identification. Works well, with the variable frequency adjuster pot too. BE aware of may FAKES on the market, this one is genuine, has the amazon buying protection and of course no added nasty Import charges! Overall would recommend.

I bought this to scare seagulls of my roof. It didn't work, but I got to hear the seagulls laughing for the first time, as they pecked it to pieces!

thank you

Hmm, when you buy something but realise it doesn’t work without buying other stuff…so sent back and got a regular cat sound thing.

Does what it says on the tin. Frequency is variable and can be affected by voltage so it is worth setting up with the volts you intend to use ( 9v - 15v). Drives two piezo speakers very well and produces a satisfactory signal at a good range.

I purchased this to build a wasp/insect repeller for our garden. Linked to a couple of piezos this seems to work perfectly.