💧 Stay ahead of leaks—because prevention is the new luxury.
The Resideo RWD21 is a compact, reusable water leak alarm that detects water as shallow as 1/16" and triggers a loud 85 dB alarm to alert you early. Designed for versatile placement in hidden water-prone areas, it offers an economical, reliable solution to prevent costly water damage. Powered by a 9V alkaline battery (not included), it features a low battery alert and can be reset for unlimited reuse, making it a smart, sustainable choice for home and office water safety.
| Battery Description | Alkaline |
| Number of Batteries | 1 9V batteries required. |
| Voltage | 9 Volts |
| Control Method | Remote |
| Noise Level | 85 dB |
| Sensor Technology | Contact Sensor |
| UPC | 712411960599 085267769792 716080041368 |
| Global Trade Identification Number | 00085267769792 |
| Manufacturer | Honeywell Home |
| Part Number | RWD21/A |
| Item Weight | 3.2 ounces |
| Product Dimensions | 5.5 x 1.38 x 7.25 inches |
| Item model number | RWD21 |
| Batteries | 1 9V batteries required. |
| Is Discontinued By Manufacturer | No |
| 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 |
| Battery Cell Type | Alkaline |
| Description Pile | Alkaline |
| Average Battery Life | 2 years |
| Warranty Description | 1 Year |
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