

🚪🔒 Stay ahead of every open door—smart security that’s always one step smarter!
The THIRDREALITY Zigbee Contact Sensor 2 Pack offers reliable door and window monitoring with seamless Zigbee compatibility across major smart home hubs including Echo devices with built-in Zigbee hubs. Featuring a compact design, easy peel-and-stick installation, and a remarkable 2-year battery life powered by AAA alkaline batteries, it ensures hassle-free, long-lasting security. Users can create personalized Alexa routines for alerts and automation, while the upgraded Third Reality app provides real-time battery status and event history, making it an essential smart home security upgrade for proactive professionals.







| ASIN | B09XCWRHCT |
| ASIN | B09XCWRHCT |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #35,829 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Garage Door Sensors |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,007) |
| Customer reviews | 4.4 4.4 out of 5 stars (1,007) |
| Date First Available | 19 July 2022 |
| Date First Available | 19 July 2022 |
| Included components | Detector |
| Item Package Quantity | 1 |
| Item Weight | 132 g |
| Item model number | P1DSA2 |
| Item model number | P1DSA2 |
| Manufacturer | Third Reality, Inc |
| Manufacturer | Third Reality, Inc |
| Material | Metal |
| Part number | P1DSA2 |
| Plug Profile | Door Mount |
| Power source type | Battery Powered |
| Product Dimensions | 5 x 2.1 x 6 cm; 132 g |
| Product Dimensions | 5 x 2.1 x 6 cm; 132 g |
| Specific uses | Contact Sensor |
| Style | Door Sensor 2 Pack |
| Voltage | 3 Volts (DC) |
| tech_spec_battery_description_toys | Alkaline |
A**M
very good
working fine
D**R
Het item voldoet volledig aan de eisen
R**B
I bought 12 of these to replace all of another brand (S*O*N*O*F*F) which uses 2032 button cells, they paired with any of the Hubitat models within about 10-15 seconds whether they were 1m or 10m away. The driver it picked up was the built in Generic Zigbee Contact Sensor (no temp) They all needed an upgrade from 0x30 to 0x3F which was easily done via Hubitat within about 10mins, about 60 secs per 10% block, the progress can only be seen in the live logs for the Hub. This gives you: Optimized the network joining and reconnecting algorithms Optimized the power detection logic Optimized the trigger filtering algorithm From what I have experienced, the upgrade procedure is well protected and never bricked any of them, each 10% block is transferred and checksumed, at 100% the upgrade is transferred to its flash memory. The device still has live operation during the upgrade process. I made a mistake on the first one by unpairing/re-pairing while it was upgrading, simply because I did not realise anything was happening viewing the device page. When I found where I could see the progress, it had stopped at 30%, after 2 mins I realised the upgrade had been cancelled by my actions without any harm. The upgrade was just started again and completed without error. The great thing about these 3rdReality devices is that they use a modern hall effect sensor to trigger via the magnet instead of an antique reed switch, so they can be mounted offset slightly on windows and doors, the max detection range is about 25mm so best to stick with 15mm or less if the magnet is not on the same plane. As long as you dont have any poor/ chatty/ proprietary Zigbee protocol devices on the Hub and have good plug in repeater mains sockets between far off devices to create a good Zigbee mesh they operate automations in Rule Manager within a second , no matter how far away they are from the Hub. I am very impressed with this brand and have purchased 8 Temperature/Humidity lite sensors, again uses 2 x AAA supplied and also a couple of the waterproof soil moisture/temperature sensors to assist in the automated garden watering .
K**N
Works perfect, easy mount and setup Recommended
A**A
Funciona de lujo, raros son los que pueden tener tal espacio de detección. Además, usando pilas normales, fácil cambiarlas y recargarlas. La única pega es que usando pilas normal, pues es un poco más grande, claro.
C**Y
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!
Trustpilot
2 months ago
2 weeks ago