---
product_id: 766095
title: "The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA)"
brand: "the basement watchdog"
price: "4251 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/766095-the-basement-watchdog-110-db-water-alarm-w-detachable-sensor
store_origin: IS
region: Iceland
---

# Detects 1/32 in. water 6 ft. sensor wire + 100+ ft. expandable 110 dB loud alarm The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA)

**Brand:** the basement watchdog
**Price:** 4251 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of leaks with the watchdog that never sleeps!

## Quick Answers

- **What is this?** The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA) by the basement watchdog
- **How much does it cost?** 4251 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/766095-the-basement-watchdog-110-db-water-alarm-w-detachable-sensor)

## 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

- • **Expandable Coverage:** Add over 100 feet of wire to monitor multiple vulnerable areas seamlessly.
- • **Powerful 110 dB Alarm:** Hear it loud and clear anywhere in your home—never miss a critical warning.
- • **Flexible Sensor Placement:** 6-foot detachable sensor wire reaches hard-to-access spots like sump pits or walls.
- • **Battery-Powered Reliability:** 9V alkaline battery ensures continuous protection without wiring hassles.
- • **Ultra-Sensitive Leak Detection:** Catches water as little as 1/32 inch—early alerts that save your space.

## Overview

The Basement Watchdog BWD-HWA is a compact, battery-powered water alarm featuring ultra-sensitive solid-state circuitry that detects minimal water presence (1/32 inch). Its piercing 110 dB alarm ensures alerts are heard throughout your home, while the detachable 6-foot sensor wire and expandable wiring options provide versatile placement for hard-to-reach areas. Designed to prevent costly water damage, it’s a must-have early warning system for any modern home.

## Description

The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA) - Household Alarms And Detectors - desertcart.com

Review: Simple, inexpensive, and works. Saved our finished basement, or at least a lot of headache. - Simple, inexpensive, and works. Saved our finished basement, or at least a lot of headache. Detected a water heater leak, with a loud enough buzzer that we heard it across the house and investigated. Caught it at a small leak before spreading, shut off the water to the heater, and got it replaced. Otherwise it would likely have been weeks or longer until we discovered the leak.
Review: Great Product - In March of 2024, I purchased the “Basement Watchdog Model BWD-HWA 110 dB Battery Operated Water Alarm” from desertcart and good thing I did. I positioned the small sensors in the tray below my hot water heater in my laundry room. About two weeks ago, my hot water heater broke and the Basement Watchdog did its job! It set an alarm off. Yes, the alarm was loud but it was effective in alerting me to a leak that was taking place. The water alarm was reliable and easy to install, taking seconds to set up. It was effective in preventing water damage and it saved me thousands of dollars in potential damage! It really worked!!

## Features

- Detects as little as 1/32 in. of water to offer an effective early warning system
- Solid-state circuitry is extremely sensitive and reliable
- Loud 110 dB alarm can be heard throughout the house
- Sensor has a 6 ft. wire so it can be extended into a sump pit, or mounted on a wall
- Accommodates the addition of more than 100 ft. of wire (additional 24-Gauge wire not included)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery Description | Alkaline |
| Brand | THE BASEMENT WATCHDOG |
| Color | White |
| Power Source | Battery Powered |
| Product Dimensions | 1"L x 1"W x 1"H |
| Voltage | 9 Volts |

## Product Details

- **Battery Description:** Alkaline
- **Brand:** THE BASEMENT WATCHDOG
- **Color:** White
- **Power Source:** Battery Powered
- **Product Dimensions:** 1"L x 1"W x 1"H

## Images

![The Basement Watchdog 110 dB Water Alarm w/Detachable Sensor for Hard-to-Reach Areas (BWD-HWA) - Image 1](https://m.media-amazon.com/images/I/81CRuz4hrWL.jpg)

## Questions & Answers

**Q: How do you splice in more wires to create a dual sensor using the one box?  Want to put 1 box and 2 sensors in a tight location.**
A: For the price, why splice wires, the leads can be extended to 6 feet.  What I would recommend is to place the sensor on a sheet of paper towel.  Any moisture will wick up to the contacts.  Also you can cover a bigger area where just a corner of the paper towel will transfer the liquid by capillary action to the contacts.

**Q: is it easy to reset**
A: To reset all you have to do is dry the leads and it will stop alarming. Please contact us directly if you are in need of further assistance at 800.911.0466 ext 3. We are open M-F 9-5 CST and would love to assist you.

**Q: if the battery is low, will it give you some sort of audible/intermitten beep warning (like a smoke alarm)?**
A: I am going to buy this and a 9v battery eliminator that plugs in(about $10). Never have to worry about batteries. If a Sump is involved maybe a very small UPS could be a solution(about $30). There is a mini ups on Amazon. You can get a 9v battery clip and wire up. 
Good 9V batteries aren't cheap either.
 Consider what repairs could cost.

**Q: what is size of sensor**
A: 2-1/2" X 1" X 1/8" plastic plate.  there are 2 metal discs a little smaller than a dime fixed to that plate. There is a 10 feet long wire would up inside the case that attaches the sensor to the case. The case has 2 holes on the back to mount on wall if you want to do that. There are two mounting holes in the sensor plastic plate if you want to mount that, such as with any tiny screws you happen to have. The instructions say you can splice up to 100 feet of wire onto the 10 feet wire in order to have the alarm somewhere far away from where the sensors are placed. Teeny tiny wire is OK to use since the voltage is only 9 volts.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple, inexpensive, and works. Saved our finished basement, or at least a lot of headache.
*by N***H on December 25, 2025*

Simple, inexpensive, and works. Saved our finished basement, or at least a lot of headache. Detected a water heater leak, with a loud enough buzzer that we heard it across the house and investigated. Caught it at a small leak before spreading, shut off the water to the heater, and got it replaced. Otherwise it would likely have been weeks or longer until we discovered the leak.

### ⭐⭐⭐⭐⭐ Great Product
*by D***. on October 2, 2025*

In March of 2024, I purchased the “Basement Watchdog Model BWD-HWA 110 dB Battery Operated Water Alarm” from Amazon and good thing I did. I positioned the small sensors in the tray below my hot water heater in my laundry room. About two weeks ago, my hot water heater broke and the Basement Watchdog did its job! It set an alarm off. Yes, the alarm was loud but it was effective in alerting me to a leak that was taking place. The water alarm was reliable and easy to install, taking seconds to set up. It was effective in preventing water damage and it saved me thousands of dollars in potential damage! It really worked!!

### ⭐⭐⭐⭐⭐ It already saved me once from a leaking water heater!
*by J***. on June 7, 2024*

THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm, has been an excellent addition to my home safety setup. This water alarm is perfect for placing next to water heaters, next to the dishwasher or laundry room, under kitchen and bathroom sinks, and by AC drain pans. It saved me big from a leaking water heater! The alarm is powered by a 9v battery, which makes it very convenient to install anywhere without worrying about electrical outlets. The 110 dB alarm is loud and ensures that you can hear it from anywhere in the house, giving you peace of mind that you will be alerted to any leaks or water issues promptly. One of the standout features of this product is its extended cable, which allows you to place the sensor separately from the main device. This is incredibly useful for those hard-to-reach spots where leaks are most likely to occur but where placing the entire device might be impractical. Make sure to test it periodically by touching the two sensors with a finger. I also write the date of installation on the battery and change it once a year. With the cost of insurance and labor going up, don't skip on this economical and reliable home protection device! Overall, THE BASEMENT WATCHDOG Model BWD-HWA is a reliable and effective water alarm. It's easy to set up, provides a loud and clear alert, and offers the flexibility to position the sensor in the most critical locations. I highly recommend it for anyone looking to protect their home from potential water damage.

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-21*