Mouse in my motorhome

Yes, and recommend them, have used both mains powered ones and 9v battery ones, both work......but only as a deterrent, they dont get rid of mice already  installed. For them you need llittl nippers. Have worked for me for over 10 years.

I've been using mains powered ultrasonics for a long time now.  Used with a plug in timer they have protected my shed ( Containing lots of bird food ) while we have seen evidence of the occasional rattus norvegicus ( thank you Rocky     ) in open areas.  I use the timer to vary the length of time the deterrents are working so they don't get used to the noise which we cannot hear  .

We have also got a mouse problem in our motorhome again this year.  They appear to be getting in underneath.  The mesh grills are too large and once in they get about using the ducting and panelling.  We have blocked holes inside with wire wool which still allows air to circulate, but cannot be chewed.  We also spray peppermint oil around on the bedding, as we don't mind the smell - mice are supposed to hate it.  Good luck!

Put some pepper on a brick when the mouse sniffs it it will sneeze and knock it self out pick the mouse up and when it comes round release it somewhere safe hope this helps    Or buy a cat

We use the metal mousetraps [just under £5 per pair from B&Q] set on a very fine trigger. Caught 18 during Summer until we found out the entry point to the kitchen; caught another mouse 2 days ago.

We use margarine with hot chocolate powder sprinkled over and fix both the bait and the trap base with Blutak because the crafty devils nudge the traps out of the way and/or duck under the spring loader to access the feed from under the sprung platform. We also use the domestic poison blocks that encourage the mice to nibble, become drowsy/careless and then trigger the trap.

It's a battle of wits and gets personal if the mouse beats the trap twice ... Occasionally, the mouse will approach the trap at 45 degrees to the platform and that means it gets caught by the rear leg. I use an offcut of thin tongue & groove to garrot the mouse, keeping my hands wellclear of any nipping attempts ...

Steve