Wi-Fi leak sensor · exact-product guide
SwitchBot Water Leak Detector: placement, alerts and Canadian buying guide
Water Leak Detector watches for dripping, immersion or a changing water level and can sound locally while sending remote alerts over Wi-Fi. It is an early-warning sensor, not an automatic shutoff valve, so coverage depends on placing enough sensors at the first point water would actually reach.
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Paid CJ affiliate link; commission never changes our analysis. Verified September 1, 2026.Short answer
A practical fit under a water heater, sink, dishwasher, washing machine or near a floor drain when 2.4 GHz Wi-Fi is reliable and someone can respond to the alert. The standard one-pack works without a hub; the separate sensor-cable edition is the better match for a narrow or hidden leak path.
Verified specifications
The facts that change the decision
- Exact priced variant
- 1-Pack · Standard Edition · without sensor cable
- Detection modes
- Dripping water, immersion and water-level change
- Local alarm
- Up to 100 dB
- Connectivity
- Bluetooth and 2.4 GHz Wi-Fi · no hub required
- Alert paths
- Device alarm, app notification, email and supported voice-assistant routines
- Water resistance
- IP67 · up to 1 m for no more than 30 minutes
- Power
- 2 × AAA alkaline batteries included · up to two years
- Published open-air Wi-Fi reach
- Up to 120 m without walls or obstructions; real indoor range will be shorter
Good fit
This product may fit if…
- The sensor can sit at the lowest point where water from the exact appliance or pipe would collect first.
- Stable 2.4 GHz Wi-Fi reaches the floor-level installation point.
- Someone has a defined response plan for shutting off water and checking the property after an alert.
- You accept that several leak paths may require several sensors rather than one central unit.
Stop before buying
Do not order yet if…
- You expect the device itself to close a water valve or stop the leaking appliance.
- The intended location has no reliable 2.4 GHz Wi-Fi and remote notification is essential.
- The detector would be left permanently submerged or used as a dependable light-rain sensor.
- The hidden leak path requires the sensor-cable edition but the standard edition is in the cart.
Installation
Five-step verification plan
- 1
Trace likely water paths from each appliance, supply hose, drain, shutoff and floor slope before choosing locations.
- 2
Choose Standard or Sensor Cable Edition by the exact area that must be reached; do not infer coverage from the family name.
- 3
Install the two AAA batteries, add the device in the SwitchBot app and connect it to the intended 2.4 GHz network.
- 4
Test the local alarm, app push and email with a controlled small amount of water, then dry the sensor fully.
- 5
Write the shutoff location and response contact into the household plan and retest every alert path periodically.
After installation
What ownership requires
- Test each sensor after moving appliances, changing Wi-Fi equipment or renovating the surrounding floor.
- Replace both AAA batteries when warned and verify the local alarm plus every remote destination afterward.
- After a real leak, dry, inspect and retest the detector before relying on it again.
FAQ
Questions before buying
Does it need a SwitchBot Hub?
No. The detector connects directly through Bluetooth and 2.4 GHz Wi-Fi for local and remote alerts.
Can it stay underwater?
No. Its IP67 specification covers immersion up to 1 metre for no more than 30 minutes, not continuous underwater operation.
Will one detector protect the whole house?
Only if every likely leak reaches that exact point first, which is uncommon. Separate appliances, rooms and drains usually create separate paths.
Product in action
Official photos and demonstrations
Photos come from the exact Canadian product listing. The video shows operation or installation; it does not replace compatibility measurements.