--- product_id: 461983830 title: "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" brand: "thirdreality" price: "204.42 DT" currency: TND in_stock: true reviews_count: 11 category: "Thirdreality" url: https://www.desertcart.tn/products/461983830-thirdreality-zigbee-contact-sensor-door-and-window-monitor-home-automation store_origin: TN region: Tunisia --- # Zigbee 3.0 compatible 2-year battery life OTA firmware updates 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 **Brand:** thirdreality **Price:** 204.42 DT **Availability:** ✅ In Stock ## Summary > 🚪🔔 Stay ahead of the curve—secure your space with smart precision! ## Quick Answers - **What is this?** 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 by thirdreality - **How much does it cost?** 204.42 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/461983830-thirdreality-zigbee-contact-sensor-door-and-window-monitor-home-automation) ## 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 - • **Custom Alexa Routines:** Trigger lights, alerts, voice alarms, or even jokes when doors/windows open—make your home smarter and more fun. - • **Ultra-Long Battery Life:** Powered by 2 AAA batteries lasting up to 2 years—set it and forget it with minimal maintenance. - • **Seamless Zigbee Integration:** Effortlessly pairs with Echo (4th Gen+), SmartThings, Home Assistant & more for unified smart home control. - • **Real-Time Monitoring & Alerts:** Track sensor status, battery levels, and history via Third Reality app with low battery email notifications. - • **Instant Setup & Auto-Discovery:** Get started in seconds with Alexa voice commands—no tech headaches, just smart convenience. ## Overview The THIRDREALITY Zigbee Contact Sensor is a compact, wall-mounted door and window monitor compatible with major Zigbee hubs and Echo devices with built-in Zigbee. Featuring a hassle-free setup, 2-year battery life, OTA updates, and customizable Alexa routines, it empowers millennials to effortlessly secure and automate their homes with real-time alerts and seamless smart home integration. ## Description 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 : desertcart.co.uk: DIY & Tools Review: Works with SmartThings - Works with SmartThings It keep saying trying pair but already paired in the background. No issue Review: R eliability - Again not used this particular sensor as yet but used others in the range using home assistant and they are brilliant ## 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 | 85,560 in DIY & Tools ( See Top 100 in DIY & Tools ) 80 in Home Security Door & Window Sensors | | Brand | THIRDREALITY | | Country Of Origin | China | | Customer Reviews | 4.3 out of 5 stars 733 Reviews | | EU Spare Part Availability Duration | 2 Years | | Included Components | AAA Battery × 2, Door Sensor, Double-sided Tape, Screws | | Item Dimensions | 50 x 21 x 60 millimetres | | Item Weight | 2.08 Ounces | | Item dimensions L x W x H | 50 x 21 x 60 millimetres | | Item weight | 2.08 Ounces | | Manufacturer | Third Reality, Inc | | Manufacturer Part Number | 3RDS17BZ | | Maximum Supply Voltage | 1.5 Volts (DC) | | Maximum supply voltage | 1.5 Volts (DC) | | Measuring Range | Open - Gesloten | | Measuring range | Open - Gesloten | | Model Number | P1DSA2 | | Mounting Type | Wall Mount | | Number of Items | 1 | | Output Type | Push Button | | Sensing Distance | 2 Metres | | Style | Door Sensor | | Style Name | Door Sensor | | UPC | 850001595285 | | Unit Count | 1.0 count | | Upper Temperature Rating | 50 Degrees Celsius | ## Product Details - **Brand:** THIRDREALITY - **Item dimensions L x W x H:** 50 x 21 x 60 millimetres - **Item weight:** 2.08 Ounces - **Maximum supply voltage:** 1.5 Volts (DC) - **Style:** Door Sensor ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/41-tjH1nx-L.jpg) ## 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 ### ⭐⭐⭐⭐⭐ Works with SmartThings *by K***N on 3 July 2025* Works with SmartThings It keep saying trying pair but already paired in the background. No issue ### ⭐⭐⭐⭐⭐ R eliability *by D***D on 25 October 2025* Again not used this particular sensor as yet but used others in the range using home assistant and they are brilliant ### ⭐⭐⭐⭐⭐ Works with Echo 4th gen *by Z***N on 19 November 2022* Works with Echo 4th generation and most importantly doesn't drop connection unlike another cheaper brand did. I'm using this with a Honeywell DualTec pir relay output to trigger motion on my driveway and alert Alexa to announce there is motion detected. ## 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/461983830-thirdreality-zigbee-contact-sensor-door-and-window-monitor-home-automation](https://www.desertcart.tn/products/461983830-thirdreality-zigbee-contact-sensor-door-and-window-monitor-home-automation) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-02*