Water Leak Detector - Flood Water Level Sensor Detectors - Bath Alarm Overflow Sensor - Rain or Moisture Indicator

I bought this not expecting anything amazing, but my god.... Once you insert the battery and give it, its 1st run its well loud.... I don't use it to check a filled bath, I use it at work on our machines as about once every 2 weeks or so we need to top up out water based coolant and the tanks are huge.. And take hours to fill sometimes we leave the pipe In and even go home, then the next shift comes in the the factory flooded!!! (See photo)This was just tested the other day when the labourer set the mixer away filling the machine then went out delivered things in the van... I sued this alarm.on the machine and it alerted 3 or 4 guy in the factory that there was a flood imminent and we were all like 50meters plus away...This items I worth it's wait in gold, coz I'll not have to be mopping 1/2 a factory up with gaffa daring at me through his office window any more 😂

A very simple design which should ( in theory) be foolproof. If the black sensor is immersed in water, the alarm sounds. The sensor contains two metal prongs. The presence of water completes the circuit between the prongs, sounding the alarm.Bit of a squeeze getting the battery ( not supplied) into the compartment. No need to worry about not hearing this alarm- it's loud enough to wake the dead. Because in "stand by" mode the power consumption is zero, the battery should last for an extremely long time, i.e., long as its' "shelf life" will allow.This item could, incidentally, easily be adapted to a variety of DIY uses. The water sensor could be removed by any competent person and replaced with a microswitch, mercury "tilt sensor" or any passive device of this nature.Note- I did NOT receive this item free nor was I rewarded for giving a good review. This review is my own opinion, I do not need "incentivised" to give reviews.

The alarm unit needs water proofing and an IP rating

This would have been an ideal water leak alarm.It's sensitive, loud and reasonably priced.My only gripe is that it doesn't have a switch.Trying to remove the battery to shut the thing up before my ears started to bleed wasn't my idea of fun.A switch to turn it off would have been a most welcome addition.

Good quality works well

Purchased this after a somewhat expensive leak in our kitchen.Product does what it says. Alarm level is perfectly adequate. Comes with three methods of fixing (see description), but I was content to just hang the unit by its cord to the plumbing under the sink. Screws provided looked rather small and fiddly.My only concerns about this product are (a) once sensor is in contact with water, alarm sounds continuously, this is not ideal if you are out all day and the battery has exhausted itself by the time you return - be better if it reverted to an occasional bleep after the first 30 seconds or so; (b) there's no indication in the instructions about whether it bleeps to let you know that the battery needs replacing - strongly suspect it won't, so you could easily end up not being protected; and (c) sensor works by the water completing an electrical circuit - again I suspect dampness/"moisture" isn't going to trigger this alarm (borne out by my quick tests).However, as a cheap water detection device, I am very pleased with this and would recommend it.

I bought this as a leak detector for my water bed and it works! I was woken one night by it and upon investigation sure enough one of the water tube valves was leaking. The good thing about having the detector meant that the leak was small and easily cleaned up. If I'd not had it much more water would have had to leak out before the outside of the mattress became wet. It is loud though, I muffled mine by putting it in a polystyrene box.

Ordered 1 of these - arrived quickly; popped battery in; tested by dipping into water - works okay, but would not switch off regardless of the amount of shaking drips off and blow drying. Only way to silence was to remove battery. Returned and ordered replacement.Replacement arrived.Plugged in, worked okay, then switched off okay.2 hours later alarm went off with no moisture, and would not switch off but on a much quieter volume. Battery was new.Returning both and finding something more reliable than these.