TP-Link Tapo T300 Smart water leak sensor

The Tapo T300 is a wireless smart sensor designed to detect water leaks and drips reliably before damage occurs. It features six highly sensitive detection probes (top and bottom), an integrated siren up to 90 dB, waterproof IP67 rating, and instant notifications via the Tapo app. When paired with a compatible Tapo Hub, it can also trigger smart actions such as activating lights or other devices when a leak is detected — making it ideal for basements, laundry rooms, bathrooms, near washing machines or under sinks.

Technical Specifications:



Model: Tapo T300




Probe type: 6 detection probes (top and bottom surfaces)




Alarm: Up to 90 dB integrated siren, adjustable volume or mute




Rating: IP67 (dust- and waterproof)




Connectivity: Sub-1GHz wireless (868 MHz EU / 922 MHz US) — hub required




Power: 2 × AAA / LR03 batteries (replaceable)




Battery life: Up to ~1.5–3 years (depending on usage)




Operating temperature: ~ 0° to 40 °C (32°–104 °F)




Operating humidity: 0%–99% RH




Dimensions (H × W × D): ~ 84.5 × 46.5 × 30 mm




Use case: Place on floor or flat surface where water may accumulate (under sinks, washing machine, bathroom floor etc.)




Integration: Works with Tapo Hub ecosystem; send instant app notifications, trigger other devices, manage up to 64 sensors per hub