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Honeywell Water Leak Detector

Reusable water leak alarm

Item # 632RWD21

Discontinued item

Item # 632RWD21

About the Honeywell Water Leak Detector

Catch a leak before it becomes a flood

Like any homeowner, I've faced my fair share of water leaks, and every time I wished I'd caught it when it was a tiny drip, drip, drip. The Honeywell Water Leak Detector can make that wish come true. It issues a loud, audible alarm when moisture is detected, so you can find the problem before it becomes a disaster.

Product highlights:

  • detects leaks and issues an audible alarm
  • alarm sounds for up to 24 hours
  • easy to reset and use again
  • powered by 9-volt battery (not included)
  • low battery chirp
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # 3E4479

What's in the box:

  • Water leak alarm
  • Operating Instructions

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More details on the Honeywell Water Leak Detector

Mark G.

Product Research


Overview: The Honeywell Water Leak Alarm (RWD21) can alert you when one of your appliances is leaking water, potentially saving you from costly water damage. The alarm is a simple, standalone item that can be placed near washing machines, water heaters, dishwashers, toilets, sinks, or other areas where a water leak may occur. The device is powered by a 9-volt battery (not included), and has two metal contacts on the bottom. When leaking water touches the contacts, it completes a circuit which triggers the alarm. The alarm emits 3 loud beeps every 3 seconds for up to 24 hours, as long as water is present. The Water Leak Alarm is reusable, once it is allowed to dry. The unit will chirp once every 30 seconds when the battery is low.

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