--- product_id: 462299998 title: "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" brand: "thirdreality" price: "469.78 DT" currency: TND in_stock: true reviews_count: 5 category: "Thirdreality" url: https://www.desertcart.tn/products/462299998-zigbee-contact-sensor-4-pack-door-and-window-monitor-home store_origin: TN region: Tunisia --- # Zigbee standard compatible 2-year battery life Hassle-free installation 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 **Brand:** thirdreality **Price:** 469.78 DT **Availability:** ✅ In Stock ## Summary > 🚪🔔 Stay ahead of every open door—smart security that’s always one step smarter. ## Quick Answers - **What is this?** 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 by thirdreality - **How much does it cost?** 469.78 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/462299998-zigbee-contact-sensor-4-pack-door-and-window-monitor-home) ## 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 - • **Effortless Setup:** Stick & sync in seconds with included adhesive or screws—no tech headaches here. - • **Smart Alexa Routines:** Trigger lights, alerts, or even jokes when doors/windows open—automation that feels alive. - • **Ultra-Long Battery Life:** Powered by AAA batteries lasting up to 2 years—less hassle, more peace of mind. - • **Seamless Zigbee Integration:** Works flawlessly with Echo (4th Gen), SmartThings, Home Assistant & more for smart home synergy. - • **Real-Time Monitoring & Alerts:** Track battery status and sensor history via Third Reality app; get low battery warnings by email. ## Overview The THIRDREALITY Zigbee Contact Sensor 4 Pack offers reliable door and window monitoring with seamless Zigbee compatibility across major smart home hubs including Echo devices, SmartThings, and Home Assistant. Featuring a compact design, easy installation, and up to 2 years of battery life on standard AAA batteries, these sensors empower you to automate your home with Alexa routines and receive real-time alerts and battery updates via the Third Reality app. Ideal for millennial professionals seeking smart, hassle-free home security integration. ## Description Door and window sensor can directly work with compatible ECHO. And its compact design can fit in most doors and windows. Most of the doors or windows have a height difference from the doors' or windows' frame. With the special design the height difference can be reduced to make sure the two parts of the door sensor have a stable contact. Simply peel off the protective layer of double-sided tape and stick the two parts of the door sensor to the door and the door frame. You can monitor every door and windows in your home and create routines to send messages to your smartphone when the door or window is open. You also can create routines that are triggered by the on/off status of the door sensor. Review: Great little sensors - I’ve been using these door/window contact sensors around the house for a few months now, and they’ve been great. I set them up to turn on cupboard lights when doors open, and to automatically turn on the hallway lights when the front door is opened at night. Once paired with my Zigbee setup (I’m running them through Home Assistant), the automations fire reliably and consistently, no lag or missed triggers. Installation was straightforward: the sensors are slim, powered by standard AAA batteries with up to ~2 years of life, and can be mounted with either the included adhesive tape or screws. Once connected they’ve stayed paired without any problems, and using regular batteries (rather than coin cells) makes swapping them out simple when needed. Overall these contact sensors have worked exactly as I’d hoped. They’re reliable, great value, easy to integrate into automations, and now a core part of my smart-home setup. Review: Funktioniert wie vorgesehen - Nutze die Sensoren in Verbindung mit ioBroker/NodeRed. Funktionieren einwandfrei, unauffällige Optik. ## Features - ZIGBEE STANDARD COMPATIBLE DOOR SENSOR: Works with compatible Zigbee hubs or Echo devices with Zigbee hub built-in. Such as Echo (4th Gen), Echo Plus (1st Gen and 2nd Gen), Echo Show 8 Gen3, Echo Show 10 (Gen2 and Gen3).Echo Studio, Eero 6, Eero Pro 6, Home Assistant, SmartThings 2015/2018, Aeotec, Hubitat, Homey Bridge, Homey Pro, Third Reality Hub Gen Plus and Third Reality Smart Bridge. Zigbee Hub Required. - HASSLE-FREE SETUP: Installs in a few seconds. Just make sure device in paring mode and compatible Echo device automatically discovers it by saying “Alexa, discover devices”. - SUIT FOR MOSTLY DOORS AND WINDOWS OF THE HOUSE AND 2-YEARS LONG BATTERY LIFE: Door Sensor uses two AAA 1.5V Alkaline batteries for power, the batteries can last for up to 2 years and it is very easy to replace them. Note: Indoor use only and do not install the Door Sensor on metal door or window. - MORE FUN WITH ALEXA ROUTINES: Using the Alexa app, create your own routines that are triggered When door or window is open, turn on a light, send an alert to your phone, let Alexa make a voice alarm or make a joke, etc. - UPGRADED THIRD REALITY APP AND SKILL FUNCTIONS: Connected with Third Reality Hub/Speaker, you can check the battery level in the APP, then replace the batteries in time; history record is also open to the users, so you can know when the state of the movement has been detected and deal with it in time. Enabled Third Reality Skill in the Alexa APP, you will have a low battery warning by emails. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09XCZJMC5 | | Best Sellers Rank | #3,204 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) | | Brand | THIRDREALITY | | Brand Name | THIRDREALITY | | Customer Reviews | 4.3 out of 5 stars 170 Reviews | | Included Components | Door Sensor × 4; AAA Battery × 8; Double-sided Tape × 4; Screw × 8 | | Item Dimensions | 50 x 21 x 60 millimeters | | Item Weight | 0.29 Kilograms | | Item dimensions L x W x H | 50 x 21 x 60 millimeters | | Item weight | 0.29 Kilograms | | Manufacturer | THIRDREALITY | | Material | Plastic | | Material Type | Plastic | | Measuring Range | Binary: Open - Closed | | Measuring range | Binary: Open - Closed | | Model | 3RDS17BZ | | Mounting Type | Magnetmontage | | Number of Items | 1 | | Output Type | Digital | | Part Number | 3RDS17BZ | | Specific Uses For Product | Contact Sensor | | Style | Door Sensor 4 Pack | | Style Name | Door Sensor 4 Pack | | Unit Count | 4.0 Count | ## Product Details - **Brand:** THIRDREALITY - **Item dimensions L x W x H:** 50 x 21 x 60 millimeters - **Item weight:** 0.29 Kilograms - **Material:** Plastic - **Style:** Door Sensor 4 Pack ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51j1EWmLzgL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little sensors *by D***Y on 12 January 2026* I’ve been using these door/window contact sensors around the house for a few months now, and they’ve been great. I set them up to turn on cupboard lights when doors open, and to automatically turn on the hallway lights when the front door is opened at night. Once paired with my Zigbee setup (I’m running them through Home Assistant), the automations fire reliably and consistently, no lag or missed triggers. Installation was straightforward: the sensors are slim, powered by standard AAA batteries with up to ~2 years of life, and can be mounted with either the included adhesive tape or screws. Once connected they’ve stayed paired without any problems, and using regular batteries (rather than coin cells) makes swapping them out simple when needed. Overall these contact sensors have worked exactly as I’d hoped. They’re reliable, great value, easy to integrate into automations, and now a core part of my smart-home setup. ### ⭐⭐⭐⭐⭐ Funktioniert wie vorgesehen *by C***R on 12 June 2025* Nutze die Sensoren in Verbindung mit ioBroker/NodeRed. Funktionieren einwandfrei, unauffällige Optik. ### ⭐⭐⭐⭐⭐ A bit big, but it's ThirdReality so it just works *by C***Y on 12 January 2026* These are great door/window sensors that have been super reliable for me so far. I was tired of a few other brands falling off my Zigbee network, so I went to trusty ThirdReality and haven't been disappointed. They are a bit bigger than alternatives, but that's because they pack a couple of AAA batteries which I expect to last a long time (given their record with other Zigbee devices). It's been several weeks and no battery issues so far; I would guess they'll last months or even years depending on usage. ThirdReality is also a Home Assistant partner, which means they actually test their stuff with Home Assistant and ZHA for their Zigbee stuff. It's perfectly compatible with my Sonoff Zigbee radio, as well as the Home Assistant ZBT-2 I recently switched to. They're a bit on the large size and not particularly pretty, but I don't think you could find a more reliable contact sensor for doors or windows (or drawers, or car chargers, or toilet lids… whatever you freaks are automating!) or a better value anywhere else. If you have the physical space, I'd highly recommend them! ## Frequently Bought Together - 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 - 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 Motion Sensor 4 Pack, Zigbee Hub Required, Pet Friendly, Work with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Built-in Zigbee hub --- ## 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.tn/products/462299998-zigbee-contact-sensor-4-pack-door-and-window-monitor-home](https://www.desertcart.tn/products/462299998-zigbee-contact-sensor-4-pack-door-and-window-monitor-home) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-11*