--- product_id: 564824046 title: "THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included" brand: "thirdreality" price: "€ 182.18" currency: EUR in_stock: true reviews_count: 5 category: "Thirdreality" url: https://www.desertcart.sk/products/564824046-thirdreality-zigbee-water-leak-sensor-with-dripping-detection-4-pack store_origin: SK region: Slovakia --- # 120 dB loud alarm Real-time app notifications 3-year battery life THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included **Brand:** thirdreality **Price:** € 182.18 **Availability:** ✅ In Stock ## Summary > 💧 Stay dry, stay ahead — leak alerts that keep your home safe and your peace of mind intact! ## Quick Answers - **What is this?** THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included by thirdreality - **How much does it cost?** € 182.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/564824046-thirdreality-zigbee-water-leak-sensor-with-dripping-detection-4-pack) ## Best For - thirdreality enthusiasts ## Why This Product - Trusted thirdreality brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Power:** Up to 3 years of battery life with easy AAA replacements—set it and forget it. - • **Smart App Integration:** Receive instant push and email notifications with real-time status and history via the Third Reality app. - • **Unmissable 120 dB Alarm:** Powerful siren ensures you hear alerts even from upstairs or the basement—never miss a leak again. - • **Effortless Setup Anywhere:** Compact, wire-free design fits seamlessly in kitchens, basements, or laundry rooms for instant leak detection. - • **Seamless Smart Home Compatibility:** Works with Home Assistant, Apple HomeKit, Google Home, and supports OTA updates for future-proof protection. ## Overview The THIRDREALITY Zigbee Water Leak Sensor 4 Pack offers a compact, wireless solution to detect water leaks early with a piercing 120 dB alarm and instant app notifications. Designed for easy placement near high-risk areas, it boasts a 3-year battery life and integrates smoothly with popular smart home systems like Home Assistant, Apple HomeKit, and Google Home. Batteries and mounting accessories are included, making it a hassle-free upgrade to your home’s flood protection. ## Description Water Leak Sensor provides an effective solution to protect your property. Easy setup and no wiring required; which makes monitoring even easier. You can put it everywhere you want to monitor, like laundry rooms, bathrooms, kitchens, or wherever there is a potential for leaks. When a water leak occurs, the sensor will not only send a loud alarm, but also deliver an APP notification to your phone. So you can deal with it in time to avoid water damage. Review: I need a water leak sensor and found this one not only can work alone, but also can connect to Zigbee. So I will like to give a try. For stand alone, it works right away after install the battery. I don't have Zigbee hub in hand yet. But I will update that when I have that works. The product arrive next day and look well designed and easy to install. Some may wonder what is the position to put. I posted a picture as the way to tell which side should be on top. The sound is very loud even I put under kichen closet with door closed. Updated for connecting with Zigbee hub and Alexa. 1. Bought Third Reality Zigbee Hub to pair this water leak sensor (refer to manual, it is very straight forward) 2. Use Alexa App to add devices. Find devices icon in bottom of Alexa App (home menu). Then click top right "+". and pop up menu show "Add Device", choose "Motion Sensor", then "Thirdreality". Follow the instructions to locate all the devices connect to Third Reality Zigbee HUB. In my case, I was asked to add water leak sensor into an existing group - kitchen 3. Go back to devices menu (bottom of Alexa App after home). Choose the group where show my water leak sensor there. Click "CREATE A ROUTINE" to enter into ROUTINES menu. Click top right "+" into NEW ROUTINE menu, enter routine name by click "+" - my case - motion sensor. Next enter "When this happens" by "+", choose "Smart Home" -> water leak sensor -> Open. Click Save on top right. Next enter "Add action" by click "+", choose "Messaging" -> Notification. Save. 4. After those, when water leak sensor touch water, you will receive Alexa notification and loud alarm. The notification is helpful when you are away from home. Now I have Alexa alert working with those water leak sensors ( I install 3 in my house). Review: I purchased these to help monitor locations around the home that could have water leaks, including where the main water line comes into the house, my mechanical room, underneath various sinks and in our laundry room. They work perfectly with my Home Assistant setup. The devices were instantly recognized by my Sonoff Zigbee 3.0 USB Dongle Plus (connected to my Pi5 running Home Assistant) and I could setup everything from there. So far, zero complaints as they work like a charm. The ability to adjust the sensitivity by either adding or removing the arms is a wonderful bonus. For those folks frustrated that the siren/alarm cannot be disabled, I simply opened the devices and carefully de-soldered the leads that went to the alarm. I know this voids my warranty, but I wanted to use these wonderfully reliable and widely compatible sensors, just without a siren/alarm, so that's a risk I was willing to take. Removal was easy and after the leads were insulated, snap it back together and no more siren/alarm. And, if I do end up wanting the alarm back, all I have to resolder the wires and I'm good to go. Thanks for another great product, ThirdReality! ## Features - HASSLE-FREE SET UP AND FIT ANYWHERE: Setup is super easy, just place it wherever you want. With a compact design and optional small size, you are able to place Water Leak sensor on the floor of your kitchen, basement, laundry room, or any other flat surface where you would like to monitor for leaks. Suggest to place your sensors near the washing machine, water heater, sinks, or dishwasher. - INSTANT ALARMS: After Water Leak Sensor setup is successful, the Third Reality APP will push APP and free Email notifications to you and the sensor will sound an alarm when a water leak occurs. Water Leak Sensor can also be used when the internet is off. It features with a loud 120dB alarm, and loud enough to be heard even if leakage happens in basement or up stair within your home. - APP FUNCTION:In the device detail page, Third Reality APP also displays the battery level, sensor’s real-time status and history view etc. - 3-YEAR LONG BATTERY LIFE: Water Leak Sensor uses two AAA 1.5V Alkaline batteries for power, and the batteries are easy to replace. - APARTMENT AND HOTEL MANAGER FRIENDLY: Connected to the Third Reality Hub/Smart Speaker, Water Leak Sensor can be monitored not only through the Third Reality APP, but also through the 3R-Protect Manager APP. You can go to the detail page of the “Water Leak Sensor Kit” to learn more about 3R-Protect Manager APP. - More Smart Assistant Supported: Enabled by Smart Bridge MZ1 (Sold Separately), integrates with Apple HomeKit and Google Home, to achieve easy control and monitoring. Additionally, it supports software OTA (Over-The-Air) updates. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09XDP2LZF | | Battery Description | Alkaline | | Best Sellers Rank | 1,042,302 in DIY & Tools ( See Top 100 in DIY & Tools ) 491 in Water Detectors | | Brand | THIRDREALITY | | Colour | White | | Compatible Devices | Washing Machine | | Control Method | App | | Customer Reviews | 4.4 4.4 out of 5 stars (247) | | Included Components | AA Battery × 8, High Sensitive Attachments × 4, Screwdriver × 4, Water Leak Sensor × 4 | | Manufacturer | Third Reality, Inc | | Model Number | 3RWS18BZ | | Mounting Type | Wall Mount | | Number of Batteries | 8 AAA batteries required. (included) | | Part Number | 3RWS18BZ | | Power source | Battery Powered | | Sensor Technology | Contact Sensor | | Size | S | | Sound Level | 120 Decibels | | Unit Count | 4.0 count | | Voltage | 1.5 Volts | ## Product Details - **Battery description:** Alkaline - **Brand:** THIRDREALITY - **Colour:** White - **Compatible devices:** Washing Machine - **Power source:** Battery Powered ## Images ![THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - Image 1](https://m.media-amazon.com/images/I/51rauXupsnL.jpg) ![THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - Image 2](https://m.media-amazon.com/images/I/71FGzWDWB4L.jpg) ![THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - Image 3](https://m.media-amazon.com/images/I/71iEEZbCsML.jpg) ![THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - Image 4](https://m.media-amazon.com/images/I/61u3OFI13lL.jpg) ![THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - Image 5](https://m.media-amazon.com/images/I/71kaBlVMCmL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***N on 28 June 2021* I need a water leak sensor and found this one not only can work alone, but also can connect to Zigbee. So I will like to give a try. For stand alone, it works right away after install the battery. I don't have Zigbee hub in hand yet. But I will update that when I have that works. The product arrive next day and look well designed and easy to install. Some may wonder what is the position to put. I posted a picture as the way to tell which side should be on top. The sound is very loud even I put under kichen closet with door closed. Updated for connecting with Zigbee hub and Alexa. 1. Bought Third Reality Zigbee Hub to pair this water leak sensor (refer to manual, it is very straight forward) 2. Use Alexa App to add devices. Find devices icon in bottom of Alexa App (home menu). Then click top right "+". and pop up menu show "Add Device", choose "Motion Sensor", then "Thirdreality". Follow the instructions to locate all the devices connect to Third Reality Zigbee HUB. In my case, I was asked to add water leak sensor into an existing group - kitchen 3. Go back to devices menu (bottom of Alexa App after home). Choose the group where show my water leak sensor there. Click "CREATE A ROUTINE" to enter into ROUTINES menu. Click top right "+" into NEW ROUTINE menu, enter routine name by click "+" - my case - motion sensor. Next enter "When this happens" by "+", choose "Smart Home" -> water leak sensor -> Open. Click Save on top right. Next enter "Add action" by click "+", choose "Messaging" -> Notification. Save. 4. After those, when water leak sensor touch water, you will receive Alexa notification and loud alarm. The notification is helpful when you are away from home. Now I have Alexa alert working with those water leak sensors ( I install 3 in my house). ### ⭐⭐⭐⭐⭐ Review *by S***B on 14 December 2025* I purchased these to help monitor locations around the home that could have water leaks, including where the main water line comes into the house, my mechanical room, underneath various sinks and in our laundry room. They work perfectly with my Home Assistant setup. The devices were instantly recognized by my Sonoff Zigbee 3.0 USB Dongle Plus (connected to my Pi5 running Home Assistant) and I could setup everything from there. So far, zero complaints as they work like a charm. The ability to adjust the sensitivity by either adding or removing the arms is a wonderful bonus. For those folks frustrated that the siren/alarm cannot be disabled, I simply opened the devices and carefully de-soldered the leads that went to the alarm. I know this voids my warranty, but I wanted to use these wonderfully reliable and widely compatible sensors, just without a siren/alarm, so that's a risk I was willing to take. Removal was easy and after the leads were insulated, snap it back together and no more siren/alarm. And, if I do end up wanting the alarm back, all I have to resolder the wires and I'm good to go. Thanks for another great product, ThirdReality! ### ⭐⭐⭐⭐⭐ Review *by A***M on 27 January 2022* Overall very happy with the sensor, I own two of those. It is supported by Zigbee2MQTT integration in Home Assistant plus it has independent very loud alarm which is a bonus in case your ZigBee or HA is down. The only minor drawback is the pairing button is inside the case, so you need to remove 3 little screws with a tiny screwdriver before you can pair it. The screwdriver is included btw ## Frequently Bought Together - THIRDREALITY Zigbee Water Leak Sensor with Dripping Detection 4 Pack, 120 dB Alarm, App Notifications Enabled When Compatible with Home Assistant and Compatible Zigbee HUB, Batteries Included - THIRDREALITY ZigBee Smart Plug 4 Pack with Real-time Energy Monitoring,15A Outlet, Zigbee Repeater,ETL Certified,ZigBee Hub Required,Work with Home Assistant,Compatible Echo Devices and SmartThings - THIRDREALITY Zigbee Contact Sensor 4 Pack, Door and Window Monitor, Home Automation,Works with Home Assistant,SmartThings,Aeotec,Homey,Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sk/products/564824046-thirdreality-zigbee-water-leak-sensor-with-dripping-detection-4-pack](https://www.desertcart.sk/products/564824046-thirdreality-zigbee-water-leak-sensor-with-dripping-detection-4-pack) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-06*