---
product_id: 54515899
title: "WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack)"
brand: "wer"
price: "฿1688"
currency: THB
in_stock: true
reviews_count: 13
category: "Wer"
url: https://www.desertcart.co.th/products/54515899-wer-water-leak-alarm-sensor-battery-operated-leak-alert-90db
store_origin: TH
region: Thailand
---

# 100dB ultra-loud leak alert Compact 8cm diameter, 3cm height 1-year battery life (9V, not included) WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack)

**Brand:** wer
**Price:** ฿1688
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay ahead—catch leaks before they catch you!

## Quick Answers

- **What is this?** WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) by wer
- **How much does it cost?** ฿1688 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/54515899-wer-water-leak-alarm-sensor-battery-operated-leak-alert-90db)

## Best For

- wer enthusiasts

## Why This Product

- Trusted wer brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Setup:** Wireless, battery-operated with no wiring or screws—just insert a 9V battery and place it where leaks lurk.
- • **Multi-Pack Security:** Four sensors included to blanket your home or office, protecting your assets and peace of mind 24/7.
- • **Instant Leak Detection:** Triggers a piercing 100dB alarm the moment moisture is sensed—never miss a drip again.
- • **Waterproof & Sensitive:** Built-in capacitive sensor with 3 metal probes floats and detects even the slightest moisture for early warnings.
- • **Sleek & Discreet Design:** Lightweight 100g sensor fits seamlessly under sinks, behind appliances, or in basements without clutter.

## Overview

The WER Water Leak Alarm Sensor is a compact, battery-powered device that emits a loud 100dB alarm upon detecting water leaks. Designed for versatile placement in basements, kitchens, bathrooms, and more, it features a waterproof capacitive sensor with three metal probes for high sensitivity. Easy to install with a single 9V battery (not included), each pack includes four sensors to provide comprehensive leak detection and prevent costly water damage.

## Description

WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - desertcart.com

Review: Small expense, huge savings - These are great. They work as advertised. I put one on the floor in my water utility closet with water heater, reverse osmosis filters, water softener and whole house water filter. Five days later I heard the alarm, It's loud. I checked the closet and sure enough the drain line for the softener system had split. I was very glad that I was able to catch it early and repair the line. Well worth the expense. Recommended.
Review: Great warning of potential water damage. - Saved me from major issues, placed one next to AC, which went off and alert me to water flowing into containment tray. Saved me from a lot of damage. Highly recommend.

## Features

- ANYWHERE LEAKS HAPPEN: Only 100gram water alarm leak detector with 8cm diameter and 3cm height which is easily placed anywhere you want, suitable for the sink cabinet, sump pump, washing machine, bathrooms, basements, wine cellar, kitchen and water heater. The water detector sensor will sound once a liquid leak is detected, alerting you of water leakage to avoid unnecessary property damage and economic losses
- HIGHLY SENSITIVE WATER LEAK ALARM: The liquid leak alarm is made of high quality abs plastic and electronic parts with completely waterproof design, it's okay to float on water to detect leaks to prevent the water leak damage. 3 high sensitivity metal probes built in basement water sensor alarm that can accurately detect the light moisture and issue loud alert
- EASY TO USE: Wireless water leak detector alarm, just powered by one 6f22 9v battery (battery is not included), no wiring or screws required, just twist off the sensor cover and install the battery manually, then place the water detection alarm in areas where leak and flood may occur. The sensor consumes very little power and can provide you with up to a year of home security protection
- LOUD 100DB WATER ALARMS: No buttons, no programming, our leak detector will immediately sound as long as three electrodes on the bottom of the leak sensor detect the water or the liquid. Each water leak sensor features ultra loud 100db (upgraded in 2023) alarm audio which is loud enough to be heard even if the leak happens in the basement, wine cellar or garage
- IMPORTANT SECURITY TOOL: Water leak alarm sensors are very helpful for early detection of water leaks, helping to minimize water damage and save you from costly repairs. Each package comes with 2 x wireless water detector alarm sensors and can provide a guarantee for your home security, business premises security, large scale warehouse security, life and financial security, so that you can work and live in a comfortable and safe environment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0748BRVWC |
| Audible Noise | 100 Decibels |
| Battery Description | Alkaline |
| Best Sellers Rank | #76,104 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Water Detectors & Alarms |
| Brand | WER |
| Built-In Media | Detector, sensor, alarm and plastic |
| Color | white |
| Compatible Devices | Washing Machine |
| Control Method | Push Button |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,426) |
| Item Dimensions L x W x H | 3.15"L x 3.15"W x 1.18"H |
| Item Type Name | water detectors & alarms |
| Item Weight | 0.2 Pounds |
| Manufacturer | WER |
| Manufacturer Warranty Description | 1 year |
| Maximum Range | 10 Inches |
| Mounting Type | Floor Mount |
| Number of Batteries | 1 9V batteries required. |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| UPC | 633252106826 |
| Unit Count | 1.0 Count |
| Voltage | 9 Volts |

## Product Details

- **Brand:** WER
- **Color:** white
- **Compatible Devices:** Washing Machine
- **Power Source:** Battery Powered
- **Product Dimensions:** 3.15"L x 3.15"W x 1.18"H

## Images

![WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - Image 1](https://m.media-amazon.com/images/I/51qSCYy5HGL.jpg)
![WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - Image 2](https://m.media-amazon.com/images/I/61-6c1cPzBL.jpg)
![WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - Image 3](https://m.media-amazon.com/images/I/617Sg16SbGL.jpg)
![WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - Image 4](https://m.media-amazon.com/images/I/51bAPTGXIcL.jpg)
![WER Water Leak Alarm Sensor, Battery Operated Leak Alert, 90dB Water Detector for Basements, Bathrooms, Laundry Rooms, Kitchens, Garages and All Office Areas (Shipped Without Battery, 2 Pack) - Image 5](https://m.media-amazon.com/images/I/61ybG7krE1L.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Small expense, huge savings
*by M***C on January 15, 2026*

These are great. They work as advertised. I put one on the floor in my water utility closet with water heater, reverse osmosis filters, water softener and whole house water filter. Five days later I heard the alarm, It's loud. I checked the closet and sure enough the drain line for the softener system had split. I was very glad that I was able to catch it early and repair the line. Well worth the expense. Recommended.

### ⭐⭐⭐⭐⭐ Great warning of potential water damage.
*by M***N on August 22, 2025*

Saved me from major issues, placed one next to AC, which went off and alert me to water flowing into containment tray. Saved me from a lot of damage. Highly recommend.

### ⭐⭐⭐⭐ Solid, cheap, practical drip detector for under six dollars. But screwing them on is a bit much.
*by N***B on November 7, 2025*

It works. This unit went off at 2am and saved us a chunk o money in flood avoided. Solid, cheap, practical drip detector for under six dollars. But screwing them on is a bit much. Old school analog. Obviously, if you are (a) not at home and (b) cannot hear them --- they are useless. So (a) Get the smart units that send a message to your phone if you are away from home a lot. Next -- and this is important--- it is true as a couple reviewers have noted, the loudness of the alarm is (weirdly) impacted by how you screw the lid on. See pics. Basically, there is a vented 'hole' in the top of the unit. You want that hole clear (you should see a gold tone plate at the bottom) for the sound to emerge vehemently. Otherwise, the alarm is absolutely muffled and remarkably less loud. The problem is there are no markers to help you adjust your 'screw' to make sure the hole lines up with an open space underneath. If you only turn far enough to land the vented hole over something solid (like the battery) you lose, I'd say, about 30db in loudness. It's pretty annoying actually. So we gave up after screwing/re-screwing the first lid on about twenty times trying to get it just right. Eventually, we settled for most units just-sort-kinda right. See pic (pinkie is pointing towards the "open" correct orientation; the other is blocked and alarm is softer sounding). Picture of the single unit shows the gold tone plate underneath that you DO want to be able to see. Problem is... we only got one perfectly aligned like this. :-( Annoying.

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-26*