SwitchBot W4402000 Water Leak Detector
Available Options
This water leak detector provides real-time notifications via Wi-Fi without requiring a hub, with high sensitivity that detects water as low as 0.5mm. It features a 100dB loud alarm, IP67 waterproof rating, and up to 2 years of battery life. Compatible with voice commands and smart home ecosystems like Amazon Alexa and Google Home, it offers app notifications and works on battery power with alkaline batteries included.
Features
- Real-time notifications via Wi-Fi without hub
- High sensitivity detects water as low as 0.5mm
- 100dB loud alarm for alerts
- IP67 waterproof and up to 2 years battery life
- Compatible with voice commands and smart home ecosystems
Product details
General specs
- Brand: SwitchBot
- Model: W4402000
- Color: White
- Material: Plastic
- IP Rating: IP67
- Alarm Type: Sound
- Sound Level: 100
- Battery Type: Alkaline
- Connectivity: Wi-Fi
- Hub Required: No
- Power Source: Battery
- Detection Type: Water Leak
- Notification Type: App Notification
- Batteries Included: Yes
- Smart Home Compatibility: Amazon Alexa, Google Home
Starting from $15.49
Last price update: 1/21/26
Video Reviews
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
SwitchBot W4402000 White
|
SwitchBot W4402010 White Real-time app and email alerts
|
Nestool SQ400C White Instant smartphone alerts without hub
|
eMylo SW102 White Wi-Fi connectivity with app alerts
|
KERUI SISJW01 White
|
Nuleto CD15 White Whole-property coverage up to 492 feet
|
|
| Brand | SwitchBot | SwitchBot | Nestool | eMylo | KERUI | Nuleto |
| Model | W4402000 | W4402010 | SQ400C | SW102 | SISJW01 | CD15 |
| Color |
|
|
|
|
|
|
| Rating |
|
|
|
|
|
|
| Price | $15.49 | $16.14 | $16.49 | $7.50 | $29.99 | $25.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | February 7, 2026 | February 7, 2026 | December 6, 2025 | January 14, 2026 | February 4, 2026 | February 7, 2026 |
| Material | Plastic | ABS | Plastic | Plastic | ABS, ABS+PC, Aluminum Alloy, Brass, Plastic, Stainless Steel | Plastic |
| IP Rating | IP67 | IP67 | IP66 | IP67 | IP65 | |
| Alarm Type | Sound | Sound | Light, Sound | Sound | Sound | Sound |
| Dimensions | 82, 85, 42 | 63.5, 25.4, 63.5 | 50.8, 25.4, 76.2 | 19.81, 68.58, 30.48 | 83.31, 32.77, 32.77 | |
| Item Weight | 68 | 68 | 85 | <num1>, <num2> | <num1>, <num2> | |
| Sound Level | 100 | 100 | 100 | 100 | 90 | 100, 110 |
| Battery Type | Alkaline | Alkaline | Alkaline | Alkaline | Alkaline | |
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi | Wi-Fi | Bluetooth | Wi-Fi |
| Hub Required | No | No | No | No | No | No |
| Power Source | Battery | Battery | Battery | Battery | Battery | Battery |
| Detection Type | Water Leak | Water Leak, Water Level | Water Leak | Flood, Water Leak | Water Leak | Water Leak |
| Sensors Included | 1 | 1 | 1 | 1 | 5 | 3 |
| Notification Type | App Notification | App Notification | App Notification | App Notification | App Notification | App Notification |
| Batteries Included | Yes | Yes | No | Yes | No | Yes |
| Smart Home Compatibility | Amazon Alexa, Google Home | Amazon Alexa, Google Home | Amazon Alexa, Google Home, Tuya Smart | Tuya Smart, Smart Life | Amazon Alexa, Apple HomeKit, eWeLink, Google Home, Mi Home, Smart Life, Tuya Smart | Amazon Alexa, Google Home |