Flashing alarm light

[Huge]

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?)

[JimK]

er.... grovelling around in your own shit? ah the irony

Jim K

[Andy Burns]

Not quite what I was looking for (they turned out to be 24V) and probably not quite the price you were looking for, but combined with a klaxon, this might do ...

[Nightjar]

Although the ones shown are 115V, they claim on the page to be able to supply 240V

[alan_m]

Google for Flashing LED 230V

[ARW]

Why combined with a Klaxon? Klaxton make their own 230V beacons.

[Andy Burns]

Just imagining the shit-alarm going off at Huge Towers being something like the alarm and flashing lights predicting meltdown of the power plant in an American film ...

[Huge]

Kewl.

Although perhaps not at 2AM. (There's a certain amount of groundwater seepage inwards, so it's possible.)

[Harry Bloomfield]

Huge used his keyboard to write :

I would have been inclined to use two insulated stainless rods or tubes, dangling down with the ends around the level you want and connected in series with a low voltage and a similar voltage of small relay, all run from a/c. The relay then switches your alarm or light.

More reliable than a float, they do not jam or seize.

[spuorgelgoog]

They're available in Argos :-)

May not be IP rated though.

Owain

[Brian Gaff]

if it were back in the 70s, there were loads of such things for discos... Brian

[Brian Gaff]

Being as what is in this pit, I did wonder if he meant a Flushing red light, but there you are that is just me.

However its done maybe the best plan is to just let it operate a radio doorbell circuit and have an audible alarm indoors instead? Brian

[Capitol]

Admirable!

[Capitol]

No, but this is UKDIY so a 12V cobbled together unit would seem appropriate!

[Huge]

I think we have a winner. Thank you!

[Capitol]

Agreed. It's what the professionals use.

[Adrian]

They'll be in damn near any mainland European DIY store, I'd have thought, since they seem to be a legal requirement on the gate of places with alarms (IIUC) in many countries.

Everything from your average breakdown-wagon rotating plantpot to neat little hockey-pucks.

Gawd knows what you'd search for online. Sure I've seen them in Italy - maybe Mr F could assist?