Description
Detect Water Leaks Instantly with a 90dB Alarm and Instant App Alerts
The TP-Link Tapo T300 is a smart water leak and flood sensor that detects moisture on both its top and bottom surfaces using six high-sensitivity probes — alerting you immediately with a built-in 90dB alarm and instant Tapo app push notification. With IP66 waterproofing, up to 3 years of battery life, and seamless integration with the Tapo H100 Smart Hub, it's a compact, reliable solution for protecting kitchens, bathrooms, laundries, and any water-prone area in Australian homes and businesses.
Key Features
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90dB Built-In Alarm: Emits a loud 90dB siren directly from the sensor when water is detected — audible throughout most homes without requiring a hub or internet connection.
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Dual Induction Detection: Six high-sensitivity probes on both the top and bottom of the device detect water dripping from above and complete immersion from below — covering both leak and flood scenarios.
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Instant App Notifications: When paired with the Tapo H100 Smart Hub, receive instant push notifications to your smartphone via the Tapo app the moment a leak is detected — even when you're away from home.
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Tapo Hub Alarm Integration: Triggers the Tapo H100 hub's siren for additional audible coverage across your home, and can activate smart lighting via Tapo Smart Actions for a visual alert.
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IP66 Waterproof & Dustproof: Rated IP66 for protection against powerful water jets and dust ingress — suitable for humid environments including bathrooms, laundries, and under-sink cabinets.
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Up to 3-Year Battery Life: Powered by two replaceable AAA batteries with up to 3 years of standby life — no wiring or power outlet required.
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Low Battery Alerts: Sends a push notification when battery levels are low so you're never caught off guard.
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Compact & Flexible Placement: Small, elegant design fits discreetly in any location — under sinks, behind appliances, near hot water systems, and in roof spaces.
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Smart Actions: Create automations in the Tapo app to trigger smart lights, sirens, or other Tapo devices when a leak is detected for a comprehensive alert system.
Common Use Cases
- Under-sink leak detection in kitchens and bathrooms
- Washing machine and dishwasher overflow detection in laundries
- Hot water system and storage tank leak monitoring
- Roof space and ceiling cavity flood detection
- Aquarium and fish tank overflow protection
- Commercial kitchen and hospitality venue water leak monitoring
- Rental property protection against undetected water damage
Technical Specifications
| Model |
Tapo T300 |
| Detection Method |
Dual induction — 6 probes (top & bottom) |
| Alarm Volume |
90dB (built-in) |
| Waterproof Rating |
IP66 |
| Power Source |
2× AAA batteries (included) |
| Battery Life |
Up to 3 years (standby) |
| Hub Required |
Tapo H100 (for app alerts & hub alarm) |
| Standalone Alarm |
Yes (90dB without hub) |
| App |
Tapo (iOS & Android) |
| Smart Actions |
Yes (via Tapo app) |
| Compatible Hub |
Tapo H100 |
| Low Battery Alert |
Yes (push notification) |
Downloads
Frequently Asked Questions
Does the T300 work without the Tapo H100 hub?
Yes. The T300 has a built-in 90dB alarm that sounds immediately when water is detected — no hub or internet connection required for the local alarm. However, to receive push notifications on your smartphone and trigger hub-based automations (such as activating smart lights or the hub siren), you need the Tapo H100 Smart Hub paired with the T300.
How does dual induction detection work?
The T300 has six high-sensitivity probes on both the top and bottom surfaces of the device. The bottom probes detect water pooling or flooding on the floor, while the top probes detect dripping water from above — such as a leaking pipe or appliance. This dual detection ensures the sensor catches both slow drips and rapid flooding scenarios.
Where should I place the T300?
Place the T300 flat on the floor or surface where leaks are most likely to occur — under sinks, behind washing machines, near hot water systems, or under dishwashers. Ensure the bottom probes are in contact with the surface. The sensor can also be placed in roof spaces or ceiling cavities to detect roof leaks.
How long do the batteries last?
TP-Link rates the T300 for up to 3 years of battery life on two AAA batteries under typical standby conditions. Actual battery life may vary depending on how frequently the alarm is triggered and environmental conditions. The sensor sends a low battery push notification when replacement is needed.
Can I connect multiple T300 sensors to one hub?
Yes. The Tapo H100 hub supports up to 64 Tapo sub-devices, so you can connect multiple T300 sensors throughout your home and manage them all from a single Tapo app account. Each sensor can be named and assigned to a specific room for easy identification.
Is it compatible with other smart home platforms?
The T300 works within the Tapo ecosystem via the Tapo app and Tapo H100 hub. Some Tapo devices support Amazon Alexa and Google Home integration — check the Tapo app for current compatibility. It is not natively compatible with Apple HomeKit or Matter at this time.
