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【ZX-L20】
Water Leak Sensor

Smartrol L20 Tuya WiFi water immersion detector delivers all-round household water leak protection. It instantly triggers local alarm and mobile App push notification once water touches the probe, monitoring overflow and pipe leakage 24/7. Supporting direct WiFi connection without gateway, this compact sensor features low-power battery design for long service life, waterproof probe and anti-tamper function. Compatible with full Tuya smart ecosystem, it enables customized smart automation, real-time alert records and low battery reminder, ideal for bathroom, kitchen, pipeline and server room water risk monitoring.

Product Datasheet 
Product Details Specifications Technical Q&A Product Inquiry
Real-time Water Leak & Overflow Alarm

This L20 water immersion sensor quickly detects accumulated water when liquid reaches the probe, activating on-site alarm and instant Tuya App push alerts to your phone no matter where you are. It effectively monitors bathtub overflow, broken water pipes, cabinet water seepage and basement flooding. You can catch water hazards at the earliest stage to avoid expensive floor, furniture and circuit damage, offering round-the-clock passive protection for all water-prone areas of your house.

Real-time Water Leak & Overflow Alarm
Tuya WiFi Direct Connection & Smart Ecosystem Linkage

No extra gateway required; the detector connects to home WiFi directly via the Tuya Smart App. The App supports custom intelligent automation rules, historical alarm record query, low battery reminder and anti-tamper alert settings. It seamlessly links with other Tuya smart devices to build automated water safety solutions, such as automatically shutting off water valves once leakage is detected, realizing full-process intelligent water risk management.

Tuya WiFi Direct Connection & Smart Ecosystem Linkage
Wide Application Scenarios for Indoor Water Risk Monitoring

Designed as a universal household water warning device, this sensor fits multiple high-risk water leakage locations: bathroom bathtubs and sinks, kitchen water pipes and under-sink cabinets, basement pipelines, water heaters, washing machine zones and even server rooms. The extendable wired probe can be flexibly placed at ground corners, pipe joints and sink bottoms, covering all hidden water seepage spots to eliminate blind monitoring areas.

Wide Application Scenarios for Indoor Water Risk Monitoring
Compact Fashion Low-Power Waterproof Design

Boasting a mini, sleek white housing that blends with any home decor, the detector adopts optimized low-power circuit technology for ultra-long standby service life. The external probe is fully waterproof to withstand long-term damp environments without short circuit. The split wired probe design allows flexible layout, and the whole unit features anti-disassembly protection to prevent man-made damage or false alarms caused by accidental shifting.

Compact Fashion Low-Power Waterproof Design
All-Round Intelligent Reminder & Safety Protection

Equipped with multi-dimensional alert functions besides leakage alarm: low battery notification reminds you to replace power supply timely; anti-tamper alarm triggers when the device is removed or pried open to avoid deliberate failure. All alarm events are stored in the App history log for later review. It works independently without complex wiring, plug-and-play deployment, suitable for families, rental houses and small commercial spaces for reliable water safety monitoring.

All-Round Intelligent Reminder & Safety Protection

Do I need a separate gateway to use this L20 water immersion detector?
No gateway is required. This detector supports direct WiFi connection with 2.4G home WiFi, you only need to pair it via the Tuya Smart App on your mobile phone to complete networking and receive remote leakage alerts, greatly lowering the usage threshold for home users.
Where can this water leak sensor be installed, and will the probe fail in damp environments?
It can be placed in bathrooms, kitchens, under water heaters, pipeline corners, basements and server rooms. The matched probe is waterproof, able to work stably in long-term humid conditions; just lay the probe flat on the ground where water may accumulate for accurate water detection.
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