--- product_id: 330583391 title: "Zigbee Contact Sensor, 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: "127.56 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/330583391-zigbee-contact-sensor-door-and-window-monitor-home-automation-works store_origin: TN region: Tunisia --- # Zigbee 3.0 compatible 2-year battery life OTA firmware updates Zigbee Contact Sensor, 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:** 127.56 DT **Availability:** ✅ In Stock ## Summary > 🏠 Stay connected, secure, and effortlessly smart with THIRDREALITY Zigbee Sensor! ## Quick Answers - **What is this?** Zigbee Contact Sensor, 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?** 127.56 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/330583391-zigbee-contact-sensor-door-and-window-monitor-home-automation-works) ## 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 - • **Hassle-Free Setup:** Plug-and-play installation with Alexa voice discovery—no tech skills required to secure your home. - • **Instant Smart Alerts:** Receive real-time notifications and Alexa routine triggers when doors or windows open—never miss a moment. - • **Ultra-Long Battery Life:** Powered by 2 AAA batteries lasting up to 2 years—set it and forget it without constant replacements. - • **Seamless Zigbee Integration:** Effortlessly syncs with Echo (4th Gen+), SmartThings, Home Assistant & more hubs for instant smart home control. - • **Advanced App & Skill Support:** Monitor battery status, view event history, and get low battery alerts via Third Reality app and Alexa skill. ## Overview The THIRDREALITY Zigbee Contact Sensor is a compact, easy-to-install door and window monitor compatible with major Zigbee hubs and Echo devices. It offers up to 2 years of battery life, supports OTA updates, and integrates seamlessly with Alexa routines and smart home platforms like SmartThings and Home Assistant. Designed for indoor use, it provides instant alerts and detailed event history to keep your home safe and smart with minimal effort. ## Description Third Reality is dedicated to developing easy-to-use smart home technology, allowing more users to easily manage and automate home devices without specialized skills. Our products emphasize simple installation and user-friendly interfaces. Door and window sensor can directly work with compatible ECHO. 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. Safeguard your home when you are on business or vocation, it will automatically push instant notification to your smartphone immediately. In smartphone, you can see the history records of the smart door sensor. Using the Smart Bridge MZ1(Sold separately) and the 3R-Installer App, you can customize the delay time to suit your preferences. Using two AAA standard batteries, the batteries life can last for up to two years and very easy to replace. When you cooking in the kitchen, no more worrying about the baby will slip out of the safety fence. When you enjoy your voaction, no more worrying about someone will break in. No more worrying about parents living alone forgetting or repeating their medication. ## 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 and Third Reality Smart Bridge. - 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. - More Smart Assistant Supported: Enabled by Smart Bridge MZ1 (Sold Separately), integrates with Apple HomeKit, Google Home, desertcart Alexa (Smart Speaker required) and SmartThings, to achieve easy control and monitoring. Additionally, it supports software OTA (Over-The-Air) updates, allowing for effortless firmware upgrades ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08R9PH4JT | | Best Sellers Rank | #28,579 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #60 in Home Automation Hubs & Controllers | | Brand Name | THIRDREALITY | | Customer Reviews | 4.3 4.3 out of 5 stars (776) 4.3 out of 5 stars | | Included Components | AAA Battery × 2, Door Sensor, Double-sided Tape, Screws | | Item Dimensions | 1.97 x 0.83 x 2.36 inches | | Item Weight | 2.08 ounces | | Manufacturer | Third Reality, Inc | | Material Type | Plastic | | Model | P1DSA2 | | Mounting Type | Door Mount | | Number Of Items | 1 | | Output Type | Push Button | | Part Number | 3RDS17BZ | | Style Name | Door Sensor | | Unit Count | 1 Count | | Upc | 850001595285 | ## Product Details - **Brand:** THIRDREALITY - **Item Weight:** 2.08 Ounces - **Item dimensions L x W x H:** 1.97 x 0.83 x 2.36 inches - **Material:** Plastic - **Style:** Door Sensor ## Images ![Zigbee Contact Sensor, 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/41-tjH1nx-L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Will this work with samsung smartthings smart home hub 2nd generation?** A: A definite maybe! I bought one and did get it to work so I bought a second one. I have a 2nd gen Smarthings/ Aerotec hub. I could not get this one to work and spent 2 hours trying various solutions. The linking process could defiantly be improved. **Q: Will this contact sensor work with any tuya zigbee hub?. i need it to work with tuya or smart life app.** A: I'm using 5 3rd realty switches all via Zigbee hub....should work **Q: is the sensor affected by gravity - meaning - can I angle it, use it upside down, etc? thx!** A: Not affected by gravity (horizontal or vertical). I have sensors installed on doors and windows. It does not make a difference. They work in either orientation. Hope this helps. **Q: Is this UL 2017 approved?** A: Unable to confirm, not listed on the product or in the literature ## Customer Reviews ### ⭐⭐⭐⭐⭐ I was happy with it, then it went haywire, then it returned to working properly *by on Reviewed in the United States October 14, 2022* Updated review 11/14/22 and reinstated 5 star rating:Apparently, during the last week or so of October 2022, there was a software issue of some sort between this device (contact & motion sensors) and my Echo Show. I think it was a zigbee issue. A lot of users of zigbee-enabled devices complained about it on reddit. I don't know the exact problem because it's all hush-hush, keep the customer uninformed. Apparently, it was corrected by Amazon after approximately one week. My Third Reality zigbee contact and motion sensors all work beautifully at the moment. Until the next glitch, of course. I reinstated my original 5 star rating because I really like how these devices work for me (except for the glitches, of course).-----------------Updated review 10/31/22 and 1 star rating:It worked great, until it didn’t. It disconnected from Alexa and won’t reconnect. The sensor itself works. The red light lights up when the door is open, but what good is a sensor when Alexa can’t tell you the door is open?———————Original review 10/13/22 and original 5 star rating:This device works with my Echo Show with zigbee. I asked Alexa to "find my device" and she did. I didn't need any other hub, app, or skill, and I like that it's not wifi. I purchased a couple to use on interior doors at night so I know if a door opens or not. I set up an Alexa routine. In my house, Alexa announces the door is open within 3 seconds of opening the door. There is no down or recovery time. It'll work again within seconds.I'm very happy with it and its easy integration via zigbee with the Alexa app. ### ⭐⭐⭐⭐⭐ Solid and versatile product from 3R *by on Reviewed in the United States April 11, 2026* Bought this to use in conjunction with a palm vein smart lock to monitor door status and enable routines.Super easy pairing through Hubitat, and I was able to configure it alongside the lock to lock/unlock based on the status of the sensor AND prevent errant locking when the door was closed and then quickly opened again (HUGE bonus).Don't know about the battery life yet, but I don't anticipate having to change them anytime soon. ### ⭐⭐⭐⭐⭐ Works great!!! *by on Reviewed in the United States August 7, 2026* Tried them all with SmartThings. THIS ONE, while a bit larger than most, just keeps working. 2 AAA batteries truly lasts a long time. Batteries are also common and cheap. Can't stress that enough. I'm so over those round flat types that last maybe 6 months at best. Due to the molding around the door, there is quite a big gap. But this sensor has no problem at all with that. This is my new go to door sensor for my system. ## Frequently Bought Together - THIRDREALITY Zigbee Contact Sensor, 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, Pet Friendly, Compatible 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/330583391-zigbee-contact-sensor-door-and-window-monitor-home-automation-works](https://www.desertcart.tn/products/330583391-zigbee-contact-sensor-door-and-window-monitor-home-automation-works) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-21*