• $81.55
  • Free 30-day Returns
Ships from China.
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WT421-W WiFi Water Leak Detector Smart Water Sensor with Remote Alerts, Tuya App Notification, 80dB Siren, 2x AAA Battery Operated, for Basement, Fish Tank, Sump Pump, Laundry Leak Monitoring Work

  • Instant Water Leak Detection Detect water as soon as the sensor probes make contact. Ideal for basements, fish tanks, washing machines, water heaters, sump pumps, and under-sink pipes. Prevents costly water damage.
  • WiFi Remote Alerts Know Immediately Sends instant push notifications to your phone via Tuya/Smart Life app when water is detected. No need to be home get alerts at work or on vacation. 2.4GHz WiFi connectivity.
  • 80dB Loud Alarm + App Silence Built-in siren outputs >80dB loud enough to hear from other rooms. When safe, silence the alarm remotely from the app. Double protection: audible + mobile alerts.
  • Ultra-Low Power Battery Operated Standby current <40µA (microamps) for months of battery life. Powered by 2x AAA batteries (included or not verify). No wires, no electrician place anywhere, even in tight spaces.
  • Tuya Smart Integration + Voice Alerts Works with Tuya/Smart Life app. Compatible with Amazon Alexa and Google Home receive voice announcements like "Water leak detected in basement." Create automations (e.g., turn off smart water valve when leak detected).
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Overview
Specs
Reviews

Stop water damage before it starts. WiFi alerts. Loud siren. Place anywhere.

The WT421-W WiFi Water Leak Detector is your early warning system against costly water damage. Whether it's a leaking pipe, overflowing fish tank, failing sump pump, or washing machine hose burst, this smart sensor alerts you instantly both with a loud 80dB siren and push notifications to your phone, anywhere in the world.

Why You Need a Water Leak Detector

Water damage is one of the most common and expensive home insurance claims:

  1. Average claim: $10,000+ for water damage
  2. Most leaks: Washing machine hoses, water heaters, dishwashers, sump pumps
  3. Hidden leaks: Under sinks, behind toilets, in basements
  4. Slow leaks: Can cause mold, structural damage, and health issues


Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies

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