---
product_id: 46864599
title: "Home RWD42/A Water Defense Water Leak Alarm with Sensing Cable, Rwd42 , White"
brand: "honeywell"
price: "44500CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Honeywell"
url: https://www.desertcart.sn/products/46864599-home-rwd42-a-water-defense-water-leak-alarm-with-sensing
store_origin: SN
region: Senegal
---

# 5 ft sensing cable included 100 dB loud audible alert 2 AA batteries with low battery chirp Home RWD42/A Water Defense Water Leak Alarm with Sensing Cable, Rwd42 , White

**Brand:** honeywell
**Price:** 44500CFA
**Availability:** ✅ In Stock

## Summary

> 💧 Stay dry, stay worry-free—your silent water watchdog!

## Quick Answers

- **What is this?** Home RWD42/A Water Defense Water Leak Alarm with Sensing Cable, Rwd42 , White by honeywell
- **How much does it cost?** 44500CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/46864599-home-rwd42-a-water-defense-water-leak-alarm-with-sensing)

## Best For

- honeywell enthusiasts

## Why This Product

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

## Key Features

- • **Flexible Placement:** Mount on walls or place on floors with included double-sided tape—perfect for any high-risk water zone.
- • **Instant Loud Alerts:** 100 dB alarm ensures you never miss a leak, protecting your home from costly water damage.
- • **Reusable & Resettable:** Dry, reset, and reuse after leaks—no need to replace the entire unit, saving you money and hassle.
- • **Simple, No-Fuss Setup:** Battery-powered and ready to go—just plug in the sensing cable and place it where leaks are most likely.
- • **Expanded Leak Coverage:** Surround appliances & large areas with a 5 ft sensing cable—extendable up to 250 ft for total peace of mind.

## Overview

The Honeywell Home RWD42/A Water Defense Leak Alarm features a 5-foot sensing cable (expandable up to 250 ft) that detects water leaks with a powerful 100 dB audible alert. Battery-powered with 2 AA batteries, it offers easy installation on floors or walls and includes a low battery chirp reminder. Designed for reusable, resettable use, it’s ideal for protecting homes from costly water damage in high-risk areas like basements, laundry rooms, and under appliances.

## Description

In a home, the threat of a water leak is always lurking. Whether it’s just a small drip or full-on overflow, a leak costs you money — in waste or in damage. The Water Leak Sensing Alarm can be your front line in water defense. Place it near high-risk areas for leaks: bathrooms, laundry room, basements and faucets and be alerted with a loud audible alarm as soon as water is detected.

Review: Detects Smallest Leak -- Extendable Cord - This sensor detected leaks of water dripping from my HVAC humidifier to the basement floor. I have them placed around the house now. I live in a 3-story townhouse where water leaks on upper floors in the past where we have no detectors resulted in damage costing over $25,000 to repair. As you might imagine, my insurance company which foot the bill highly recommended these. They work! We've also learned to turn off water to the house when we travel per advice from our insurance company. I'm buying these "used" because many are being returned. I don't understand why. I test them before use with a water soaked cloth and each has set off the alarm when the slightest amount of water contacts the extendable cord. Unlike the older version of this model, I have to let the water sensing cord dry thoroughly before using the sensor again. This is easy to do by unplugging the cord to stop the beeping and let it dry. The test button doesn't work on any of the 7 detectors I have so I believe it's not installed at the factory. Not an issue. The 2AA batteries seem to last for a couple years. When they need replacing the device beeps every 30 seconds or so the same as fire detectors batteries. Chasing down the beeping dead battery can be a challenge with many around the house. Of course you must be home to benefit from these detectors. They are no WiFi capable and don't connect externally to any alarm system. If you need that capability there are plenty of options. We like these because they are simple to use and work for us.
Review: Short product life - Stopped working after 3 years, Spent more than one hour troubleshooting with Resideo. At the end the repsesntative advised me to get a new detector

## Features

- EXPANDED DETECTION: Detect water with sensors on the unit or expand coverage with the included 5 ft. water sensing cable. The additional length makes this alarm ideal for surrounding appliances or use in larger areas such as utility rooms.
- AUDIBLE ALERTS: When any portion of the sensor or cable detects water, an audible alert of 100 decibles will sound to alert you to the potential leak.
- EXTENDED AREA: The entire cable senses water allowing you to surround water heaters and sump pits, run under sinks, behind refrigerators and under dishwashers. Expand coverage by purchasing additional cables to cover an even larger area - up to 250 ft.
- SIMPLE USE: Easy to use - once batteries are installed, insert the sensing cable into the cable sensor jack on the bottom of the detector, place detector so the cable is positioned where leaks are most likely to occur.
- REUSABLE: Resettable for re-use once alarm sounds. Simply dry off leak detector, clean up water and replace.
- LOW BATTERY REMINDER: The water leak alarm provides a chirp alert to remind you it's time to change the 2 AA batteries (not included).
- FLOOR OR WALL MOUNT: The detector can be placed flat on the floor or mounted on a surface. For wall mounting, use double-sided tape (included) to adhere to a dry surface. For indoor use only.
- This water leak detector is a non-WiFi unit and will notify you of leaks via an audible alarm.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0758PZ4J8 |
| Audible Noise | 100 db |
| Battery Description | Alkaline or Lithium |
| Best Sellers Rank | #167,032 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #118 in Water Detectors & Alarms |
| Brand | Honeywell |
| Built-In Media | 5-Foot Water Sensing Cable, Double Sided Tape, Installation Instructions, Water Leak Alarm |
| Color | White |
| Control Method | App |
| Customer Reviews | 3.7 out of 5 stars 151 Reviews |
| Global Trade Identification Number | 00085267884761 |
| Item Dimensions L x W x H | 3.6"L x 3.6"W x 1.25"H |
| Item Type Name | Resideo Water Leak Alarm with Sensing Cable, RWD42 |
| Item Weight | 1.6 ounces |
| Manufacturer | Honeywell Home |
| Maximum Range | 250 feet |
| Mfr Part Number | RWD42/A |
| Model Number | RWD42/A |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AA batteries required. |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Battery Powered |
| Product Dimensions | 3.6"L x 3.6"W x 1.25"H |
| Sensor Technology | Contact Sensor |
| Shape | Square |
| Size | Pack of 1 |
| UPC | 085267884761 |
| Unit Count | 1 Count |

## Product Details

- **Battery Description:** Alkaline or Lithium
- **Brand:** Honeywell Home
- **Color:** White
- **Power Source:** Battery Powered
- **Product Dimensions:** 3.6"L x 3.6"W x 1.25"H

## Images

![Home RWD42/A Water Defense Water Leak Alarm with Sensing Cable, Rwd42 , White - Image 1](https://m.media-amazon.com/images/I/61nSj75FqTL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Detects Smallest Leak -- Extendable Cord
*by D***J on June 29, 2023*

This sensor detected leaks of water dripping from my HVAC humidifier to the basement floor. I have them placed around the house now. I live in a 3-story townhouse where water leaks on upper floors in the past where we have no detectors resulted in damage costing over $25,000 to repair. As you might imagine, my insurance company which foot the bill highly recommended these. They work! We've also learned to turn off water to the house when we travel per advice from our insurance company. I'm buying these "used" because many are being returned. I don't understand why. I test them before use with a water soaked cloth and each has set off the alarm when the slightest amount of water contacts the extendable cord. Unlike the older version of this model, I have to let the water sensing cord dry thoroughly before using the sensor again. This is easy to do by unplugging the cord to stop the beeping and let it dry. The test button doesn't work on any of the 7 detectors I have so I believe it's not installed at the factory. Not an issue. The 2AA batteries seem to last for a couple years. When they need replacing the device beeps every 30 seconds or so the same as fire detectors batteries. Chasing down the beeping dead battery can be a challenge with many around the house. Of course you must be home to benefit from these detectors. They are no WiFi capable and don't connect externally to any alarm system. If you need that capability there are plenty of options. We like these because they are simple to use and work for us.

### ⭐ Short product life
*by H***D on June 15, 2026*

Stopped working after 3 years, Spent more than one hour troubleshooting with Resideo. At the end the repsesntative advised me to get a new detector

### ⭐⭐⭐⭐⭐ Just what I wanted and expected
*by J***Z on July 31, 2026*

The product is perfect. Any tech help I needed was quickly provided. Highly recommend.

## Frequently Bought Together

- Honeywell Home RWD42/A Water Defense Water Leak Alarm with Sensing Cable, Rwd42 , White
- Resideo RWD21 Reusable Water Leak Alarm
- THE BASEMENT WATCHDOG Model BWD-HWA 110 dB Battery Operated Water Alarm

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-27*