---
product_id: 492437238
title: "The Basement Watchdog Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360)"
brand: "the basement watchdog"
price: "€ 39.97"
currency: EUR
in_stock: true
reviews_count: 8
category: "The Basement Watchdog"
url: https://www.desertcart.fi/products/492437238-the-basement-watchdog-compact-110-db-water-alarm-w-360
store_origin: FI
region: Finland
---

# 360° water sensing tech Compact 2.38" x 1" x 3.25" size 110 dB piercing alarm The Basement Watchdog Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360)

**Brand:** the basement watchdog
**Price:** € 39.97
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay ahead—because leaks don’t wait!

## Quick Answers

- **What is this?** The Basement Watchdog Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360) by the basement watchdog
- **How much does it cost?** € 39.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/492437238-the-basement-watchdog-compact-110-db-water-alarm-w-360)

## Best For

- the basement watchdog enthusiasts

## Why This Product

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

## Key Features

- • **Energy Smart, Always Ready:** Battery-saver circuitry activates only when water is detected, maximizing battery life and reliability.
- • **Hear It Loud, Hear It Clear:** Piercing 110 dB alarm ensures no leak goes unnoticed, protecting your home day and night.
- • **Detects Water From Every Angle:** Patented 360° sensing technology spots even ¹⁄₃₂" of water on any side—early detection means early action.
- • **Peace of Mind Without the Fuss:** No WiFi needed—simple setup with a 9V alkaline battery keeps your home safe without complicated tech.
- • **Fits Anywhere, Protects Everywhere:** Ultra-compact design slips into tight spaces near sump pits, water heaters, dishwashers, and more.

## Overview

The Basement Watchdog BW-WA360 is a compact, battery-powered water alarm featuring patented 360° sensing technology that detects as little as ¹⁄₃₂" of water. Its piercing 110 dB alarm alerts homeowners instantly to leaks, helping prevent costly water damage. Designed for versatile placement near sump pits, appliances, and sinks, it combines ultra-sensitive solid-state circuitry with an energy-saving battery-saver feature for reliable, hassle-free protection.

## Description

The Basement Watchdog Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360) - desertcart.com

Review: Gives us peace of mind - We bought one of these on a whim and ended up returning to buy more. When we purchased our current home in the fall of 2023 it needed quite a bit of TLC and updating, including a basement clean-up from recurring water issues. One day, while doing laundry, one of our sump pumps failed and 3/4 of our basement had standing water. The plumber found that not only the laundry sump pump had failed, but the other sump pump in the basement recently had as well (it was used for the downspouts and we hadn't had any rain for weeks). After replacing those pumps (one with a battery back-up unit), we knew we needed something else to give us peace of mind. After some research, we found the Basement Watchdog. It was affordable, not super complicated, and easy to "install" (it's small and nicely compact so all you have to do is install the battery and set where you want it and you're all set). We tested it and were impressed by how loud the alarm is. Months later, with no excitement in the basement, we are on the main floor of our house and hear this piercing, consistent alarm noise. We realized it was the Watchdog. Going downstairs, we found the slop sink by the laundry leaking water out of the bottom (the washer drained into the sink). The pipe underneath had cracked when we disconnected it to be able to move the sink and paint the basement walls/floors with DryLok waterproofing and we didn't know until we ran that first wash cycle. There was just a small amount of water accumulated on the floor and the alarm went off. We will install these at all our homes in the future. They are light and compact, efficient, and give us considerable peace of mind. No wifi required either. I'm unsure if there are other units that do offer that additional connectivity, but we're happy at minimum to have that layer of protection.
Review: Saved thousands - Great investment for property owners. Had water get into my basement and this made so much noise it was hard to ignore. Saved me from having to replace hot water tanks and I was able to quickly get the water out because of the Watchdog alerting me immediately. A few dollars saved me thousands in damage and repair. Highly recommend and so easy to use.

## Features

- Patented design allows it to detect water on any side
- Senses as little as ¹⁄₃₂" of water
- Compact size (2⅜" x 1" x 3 ¼") fits almost anywhere
- Piercing 110 dB alarm can be heard throughout the house
- Save money by detecting leaks early, before costly water damage occurs
- Solid-state circuitry is extremely sensitive and reliable
- Battery-saver feature only uses energy when the alarm is sounding
- Requires a 9-volt alkaline battery (not included)
- Place in a variety of locations: Next to a sump pit, near water heater, by refrigerator, adjacent to dishwasher, beside washing machine, under sink or close to air conditioner drip pan

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | Alkaline |
| Brand | THE BASEMENT WATCHDOG |
| Color | Gray |
| Compatible Devices | Various water-prone devices and areas |
| Power Source | Battery Powered |
| Product Dimensions | 2.38"L x 1"W x 3.25"H |

## Product Details

- **Brand:** THE BASEMENT WATCHDOG
- **Color:** Gray
- **Compatible Devices:** Various water-prone devices and areas
- **Power Source:** Battery Powered
- **Product Dimensions:** 2.38"L x 1"W x 3.25"H

## Images

![The Basement Watchdog Compact 110 dB Water Alarm w/360° Sensing Technology (BW-WA360) - Image 1](https://m.media-amazon.com/images/I/71C2gBnAr0L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Gives us peace of mind
*by A***E on January 11, 2026*

We bought one of these on a whim and ended up returning to buy more. When we purchased our current home in the fall of 2023 it needed quite a bit of TLC and updating, including a basement clean-up from recurring water issues. One day, while doing laundry, one of our sump pumps failed and 3/4 of our basement had standing water. The plumber found that not only the laundry sump pump had failed, but the other sump pump in the basement recently had as well (it was used for the downspouts and we hadn't had any rain for weeks). After replacing those pumps (one with a battery back-up unit), we knew we needed something else to give us peace of mind. After some research, we found the Basement Watchdog. It was affordable, not super complicated, and easy to "install" (it's small and nicely compact so all you have to do is install the battery and set where you want it and you're all set). We tested it and were impressed by how loud the alarm is. Months later, with no excitement in the basement, we are on the main floor of our house and hear this piercing, consistent alarm noise. We realized it was the Watchdog. Going downstairs, we found the slop sink by the laundry leaking water out of the bottom (the washer drained into the sink). The pipe underneath had cracked when we disconnected it to be able to move the sink and paint the basement walls/floors with DryLok waterproofing and we didn't know until we ran that first wash cycle. There was just a small amount of water accumulated on the floor and the alarm went off. We will install these at all our homes in the future. They are light and compact, efficient, and give us considerable peace of mind. No wifi required either. I'm unsure if there are other units that do offer that additional connectivity, but we're happy at minimum to have that layer of protection.

### ⭐⭐⭐⭐⭐ Saved thousands
*by C***I on February 1, 2026*

Great investment for property owners. Had water get into my basement and this made so much noise it was hard to ignore. Saved me from having to replace hot water tanks and I was able to quickly get the water out because of the Watchdog alerting me immediately. A few dollars saved me thousands in damage and repair. Highly recommend and so easy to use.

### ⭐⭐⭐⭐⭐ Good and reliable
*by S***0 on July 14, 2025*

Easy battery installation and unit is very loud. This is a very good alarm and a good price.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.fi/products/492437238-the-basement-watchdog-compact-110-db-water-alarm-w-360](https://www.desertcart.fi/products/492437238-the-basement-watchdog-compact-110-db-water-alarm-w-360)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-11*