They all float Georgie. And when you're down here, you'll float too

Is the battery replaceable ? If yes, what size battery does it require ?

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).

Is it water proof? Meaning if it is submerged in several inches of water can it be reused?

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.

How long battery last?

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!

Deliver to Vanuatu

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Resideo RWD21 Reusable Water Leak Alarm,White

Resideo RWD21 Reusable Water Leak Alarm,White

Product ID: 105654965

Secure Transaction

Details

Colour
White
Brand
Resideo
Power source
Battery
Compatible devices
Devices with
Product dimensions
8.3L x 8.3W x

💧Detects water as shallow as 1/16"

🔋Powered by a single 9V alkaline battery

🔔85 dB loud audible alert

Description

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

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

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.

Specifications

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

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products