---
product_id: 105654965
title: "Resideo RWD21 Reusable Water Leak Alarm,White"
brand: "resideo"
price: "VT12057"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/105654965-resideo-rwd21-reusable-water-leak-alarm-white
store_origin: VU
region: Vanuatu
---

# Detects water as shallow as 1/16" Powered by a single 9V alkaline battery 85 dB loud audible alert Resideo RWD21 Reusable Water Leak Alarm,White

**Brand:** resideo
**Price:** VT12057
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead of water damage with smart, silent protection!

## Quick Answers

- **What is this?** Resideo RWD21 Reusable Water Leak Alarm,White by resideo
- **How much does it cost?** VT12057 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/105654965-resideo-rwd21-reusable-water-leak-alarm-white)

## Best For

- resideo enthusiasts

## Why This Product

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

## Key Features

- • **Simple Setup:** Place in vulnerable spots—no wiring or complex installation needed
- • **Compact & Discreet:** Slim, floor-mount design fits under appliances and sinks effortlessly
- • **Loud Audible Alarm:** 85 dB alert ensures you never miss a leak warning
- • **Early Leak Detection:** Spot leaks before they become costly disasters
- • **Reusable & Economical:** Unlimited use for multiple home locations without replacement

## Overview

The Resideo RWD21 is a compact, reusable water leak alarm that detects water as shallow as 1/16 inch and emits a loud 85 dB alert. Powered by a single 9V alkaline battery, it’s designed for easy floor placement in hard-to-monitor areas like behind appliances and under sinks, providing an economical and reliable early warning system to prevent costly water damage.

## Description

Resideo RWD21 Reusable Water Leak Alarm,White

## Features

- Unlimited use spot detector
- Economical way to defend against water leaks in multiple locations throughout the home
- Water sensor and alarm in one
- Audible alert when water is detected
- Detects water only 1/16" deep

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery description | Alkaline |
| Number of batteries | 1 9V batteries required. |
| Voltage | 9 Volts |
| Control method | Remote |
| Noise level | 85 dB |
| Mounting type | Floor Mount |
| Sensor technology | Contact Sensor |
| UPC | 712411960599 085267769792 716080041368 |
| Global Trade Identification Number | 00085267769792 |
| Manufacturer | Honeywell Home |
| Part Number | RWD21/A |
| Product Dimensions | 13.97 x 3.49 x 18.42 cm; 90.72 g |
| Batteries | 1 9V batteries required. |
| Item model number | RWD21 |
| Size | Pack Of 1 |
| Material | Plastic |
| Shape | Circular |
| Installation method | Free Standing |
| Item Package Quantity | 1 |
| Usage | Inside |
| Included Components | Water Leak Alarm |
| Batteries included? | No |
| Batteries Required? | Yes |
| Item Weight | 90.7 g |

## Product Details

- **Colour:** White
- **Brand:** Resideo
- **Power source:** Battery Powered
- **Compatible devices:** Devices with 9V battery compatibility
- **Product dimensions:** 8.3L x 8.3W x 2.9H centimetres

## Images

![Resideo RWD21 Reusable Water Leak Alarm,White - Image 1](https://m.media-amazon.com/images/I/511zSMtp6hL.jpg)

## Questions & Answers

**Q: Does it float?**
A: They all float Georgie. And when you're down here, you'll float too

**Q: Is the battery replaceable ? If yes, what size battery does it require ?**
A: Hi - Yes, the battery is replaceable.  It's a 9-volt battery.  But in my opinion, the Zircon Leak Alert alarm is better than the Honeywell.  The Zircon has sensors that lie flat on the floor, as opposed to the Honeywell, which has sensors that are raised slightly above the floor.  In fact, I tested the 2 alarms side-by-side and found that the Zircon's response time is faster than Honeywell's.  (The Zircon also uses a 9-volt battery).

**Q: Is it water proof?  Meaning if it is submerged in several inches of water can it be reused?**
A: I'm not sure if that would ruin it or not. I didn't submerge mine, just set it in shallow water to make sure it would beep.

**Q: How long battery last?**
A: The Honeywell Home RWD21 Water Leak Alarm requires a 9-volt battery and has a standby current of 5 to 10 uA. The alarm sounds for up to 24 hours (dependent upon battery life) when water is detected. Hope this helps!

## Frequently Bought Together

- Resideo RWD21 Reusable Water Leak Alarm
- Amazon Basics 8-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & Audio
- Amazon Basics 2-Pack 9 Volt High-Performance Lithium Batteries, 10-Year Shelf Life, Long Lasting Power

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**Shop now:** [https://www.desertcart.vu/products/105654965-resideo-rwd21-reusable-water-leak-alarm-white](https://www.desertcart.vu/products/105654965-resideo-rwd21-reusable-water-leak-alarm-white)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-17*