I want to put an alarm on my cesspit to tell me that the pump has failed and the pit is full (*). There are plenty of float switches on eBay (although few mains ones) and I can get an IP66 box to do any electrickery inside (indeed, I already have a small one mounted on a post besides the manhole cover where the SWA turns into flex, with a mains neon mounted on top to tell me the mains is still on).
But ... my Google-fu has failed me when it comes to finding a mains flashing/occulting/rotating warning light to mount on top of the box. I'd prefer a mains one, but all I've been able to find so far is the 12V ones that plug into a cigarette lighter socket to stick on top of broken-down cars. I suppose I could butcher one of those, and a 12V wall-wart (I have a big box-full of superfluous ones) to provide the volts, but it's more complexity I'd rather avoid. I suppose I could use a red bulb in an IP66 enclosure, but I'd rather like a flashing orange one...
So, anyone know of such a thing?
(* Guess what I spent Saturday afternoon doing?)