Available on backorder
DescriptionThe TP-Link Tapo T300 Smart Water Leak Sensor is a battery-powered sensor that detects…
The TP-Link Tapo T300 Smart Water Leak Sensor is a battery-powered sensor that detects dripping and leaking water and raises a built-in 90 dB alarm. It is designed to be placed in areas at risk of leaks, and it reports leak notifications through the Tapo app. A Tapo Hub is required for the sensor to connect and send notifications.
How does the T300 detect a leak?
Detection works through probes on the top and bottom of the unit, so the sensor can respond to water reaching it from either surface. When a leak is detected, the built-in 90 dB alarm sounds, and the alarm includes mute and volume control.
Where can the sensor be placed?
The T300 carries IP67 waterproof and dustproof protection, which supports placement in damp or wet-prone locations. Its compact body measures 84.5 × 46.5 × 30 mm.
What is required to use it?
- Hub: A Tapo Hub is required; the sensor pairs with the hub through the Tapo app setup guide before placement.
- Power: 2 AAA batteries.
- Wireless frequency: 868 MHz (EU version).
- Voice assistants: Works with Alexa and Google Assistant.
- Smart Action: Can connect with Tapo smart lighting via Smart Action.
Questions & answers
Can the Tapo T300 work without a Tapo Hub?
No. A Tapo Hub is required, and the sensor is paired with the hub using the Tapo app guide before it is placed.
Does the sensor detect water on both its top and bottom?
Yes. Leak detection uses probes on both the top and bottom of the sensor.
Can the 90 dB alarm be silenced or adjusted?
Yes. The alarm has mute and volume control.



