SwitchBot W4402000 Battery 1 pc IP67 78mm x 29mm x 32mm

The SwitchBot W4402000 Battery powers a compact, IP67-rated water leak detector designed to detect dripping water, full immersion and rising water levels. It connects directly to Wi‑Fi without a separate hub, sends remote alerts to your smartphone, and integrates with other SwitchBot smart home devices for centralized monitoring and control.

Advantages

This IP67 waterproof unit is built for wet environments such as kitchens and bathrooms and continues to report events even after temporary immersion. It supports wide Wi‑Fi coverage and unlimited device additions in the SwitchBot app, provides four alarm methods (sound, app notification, Alexa voice alarm and email), and delivers long battery life — up to two years on 2×AAA batteries included.

Suitable for

• Monitoring under sinks and around washing machines
• Basement and utility room leak detection
• Bathrooms, kitchens and other high‑humidity areas
• Vacation homes or remote properties where remote alerts are needed

Key specifications

• Model: SwitchBot W4402000 (MPN: W4402010, EAN: 810150540444)
• Protection rating: IP67 (dustproof and waterproof)
• Dimensions: 78 mm × 29 mm × 32 mm
• Power: 2 × AAA batteries (included); battery life up to 2 years
• Connectivity: Direct Wi‑Fi (no hub required)

How to use

Place the detector in the area you want to monitor (for example under a sink, next to appliances, or on a floor prone to leaks). Install 2×AAA batteries, add the device to the SwitchBot app over your Wi‑Fi network, and configure alert preferences. The detector will monitor for dripping, immersion and water level changes and send alerts when an event is detected.

Usage recommendations

Place the detector on a flat surface with the sensor side facing the area to be monitored; avoid obstructing the sensor contacts. Test notifications after setup, replace batteries approximately every two years or when the app indicates low battery, and dry the unit before reuse after prolonged immersion.