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popularKyleli posted Nov 20, 2025 02:51 PM
popularKyleli posted Nov 20, 2025 02:51 PM

THIRDREALITY Zigbee Contact Sensor, Door and Window Monitor, Home Automation, Works with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices - $11.99

$12

$20

40% off
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All time low for these ThirdReality zigbee sensors. These work really well with Alexa smart homes and use full batteries instead of those weird coin cell batteries but they're a little bulkier.

https://www.amazon.com/dp/B08R9PH4JT
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All time low for these ThirdReality zigbee sensors. These work really well with Alexa smart homes and use full batteries instead of those weird coin cell batteries but they're a little bulkier.

https://www.amazon.com/dp/B08R9PH4JT

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Model: THIRDREALITY Zigbee Door and Window Sensor for Home Security, ZigBee Hub Required, Works with SmartThings, Hubitat or Echo Devices with Build-in...

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Sort: Lowest to Highest | Last Updated 12/4/2025, 05:27 AM
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Nov 20, 2025 11:58 PM
156 Posts
Joined Jan 2009
kumar754Nov 20, 2025 11:58 PM
156 Posts
Why you want to get this when you can get 2 Pack Ring (zwave+) contact sensors for $15

https://a.co/d/1UFgnay
1
3
Nov 21, 2025 12:19 AM
258 Posts
Joined Feb 2005
GrimdeathNov 21, 2025 12:19 AM
258 Posts
In any case, these particular sensors take two AAA's and last me will over a year and a half plus before even considering changing them. If you use them in a remote property they are awesome for that reason. Also, the magnets can be placed over 2.5" away in my experience if need to due to your trim/frame.
1
Nov 21, 2025 01:31 AM
3 Posts
Joined Nov 2019
TenderPlastic6887Nov 21, 2025 01:31 AM
3 Posts
Quote from kumar754 :
Why you want to get this when you can get 2 Pack Ring (zwave+) contact sensors for $15 https://a.co/d/1UFgnay
Because the devices are agnostic and don't force u into a weird proprietary ecosystem (Ring) and needing additional hardware just to have them work. Dumb.
1
7
Nov 21, 2025 03:52 AM
46 Posts
Joined Nov 2020
docaphiliacNov 21, 2025 03:52 AM
46 Posts
Quote from kumar754 :
Why you want to get this when you can get 2 Pack Ring (zwave+) contact sensors for $15 https://a.co/d/1UFgnay
Are you sure these work with z-wave controllers? I do not have Ring but do have zwave devices.
2
Nov 21, 2025 04:03 AM
432 Posts
Joined May 2011
DudenellNov 21, 2025 04:03 AM
432 Posts

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Quote from TenderPlastic6887 :
Because the devices are agnostic and don't force u into a weird proprietary ecosystem (Ring) and needing additional hardware just to have them work. Dumb.
They're zwave, you can pair directly with home assistant. I bought a 6 pack and just paired one as a test and it worked as expected
1
Nov 21, 2025 04:04 AM
432 Posts
Joined May 2011
DudenellNov 21, 2025 04:04 AM
432 Posts

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Quote from docaphiliac :
Are you sure these work with z-wave controllers? I do not have Ring but do have zwave devices.
I bought a 6 pack of these the other day and they pair directly in home assistant.
1
Nov 21, 2025 04:09 AM
457 Posts
Joined Nov 2015
dumaskNov 21, 2025 04:09 AM
457 Posts
Quote from kumar754 :
Why you want to get this when you can get 2 Pack Ring (zwave+) contact sensors for $15 https://a.co/d/1UFgnay
I'm transitioning as much as I can to zwave. What is the battery life like on these?

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Nov 21, 2025 04:33 AM
74 Posts
Joined Jan 2007
CoolNbNov 21, 2025 04:33 AM
74 Posts
Quote from Dudenell :
I bought a 6 pack of these the other day and they pair directly in home assistant.
What do you mean by home assistant? Are you saying these work directly with Google home or do they connect directly to Smartthings Hub without the need for a Ring device?
3
Nov 21, 2025 04:38 AM
432 Posts
Joined May 2011
DudenellNov 21, 2025 04:38 AM
432 Posts

Our community has rated this post as helpful. If you agree, why not thank Dudenell

Quote from CoolNb :
What do you mean by home assistant? Are you saying these work directly with Google home or do they connect directly to Smartthings Hub without the need for a Ring device?
Home assistant is like Smart things but open source, and acts as a central hub that can connect devices from different manufacturers, and can connect with Google home. It's great for those who want more advanced automations, but has a bit of a learning curve. Google it.
3
Nov 21, 2025 04:55 AM
74 Posts
Joined Jan 2007
CoolNbNov 21, 2025 04:55 AM
74 Posts
Quote from Dudenell :
Home assistant is like Smart things but open source, and acts as a central hub that can connect devices from different manufacturers, and can connect with Google home. It's great for those who want more advanced automations, but has a bit of a learning curve. Google it.
Thank you!

Do you know if it works with Smartthings directly without needing a Ring device?
Nov 21, 2025 10:01 AM
364 Posts
Joined Dec 2018
ski522Nov 21, 2025 10:01 AM
364 Posts
Quote from CoolNb :
What do you mean by home assistant? Are you saying these work directly with Google home or do they connect directly to Smartthings Hub without the need for a Ring device?
https://www.home-assistant.io/ Open source home automation that puts local control and privacy first blows away anything from Google Home to SmartThings. I have been using it for 8 years now. I would never use cloud based anything for home automation.
Nov 21, 2025 10:09 AM
745 Posts
Joined Mar 2009
VladStarNov 21, 2025 10:09 AM
745 Posts
Quote from CoolNb :
Thank you!

Do you know if it works with Smartthings directly without needing a Ring device?
Think about HA as a replacement of Smartthings. The main advantage of HA is having a local (non-cloud) control, with much faster automations and independency from internet.

There is Smartthings integration in HA, in case you still want to control devices through it (for instance, if some your devices are not directly supported by HA, but you still want them, which would be a quite rare case):
https://www.home-assistant.io/int...artthings/

I've had smartthings v1 hub long time ago, but got tired of Samsung being such a..holes to the IoT community (device handlers), so I've bought Raspberry PI, z-wave/zigbee usb stick and installed HA on it. Yes, there is a learning curve, but no regrets.

After that the Smartthings hub went directly to trash.
Last edited by VladStar November 21, 2025 at 03:14 AM.
Nov 21, 2025 10:55 AM
306 Posts
Joined Jan 2017
JWL418Nov 21, 2025 10:55 AM
306 Posts
Almost all the Thirdreality smarthome devices are on sale, many at a similar 40% discount:
https://www.amazon.com/s?k=thirdr...Ye1ACShWaw
Nov 21, 2025 03:59 PM
107 Posts
Joined Sep 2004
nleeumdNov 21, 2025 03:59 PM
107 Posts
Quote from Grimdeath :
In any case, these particular sensors take two AAA's and last me will over a year and a half plus before even considering changing them. If you use them in a remote property they are awesome for that reason. Also, the magnets can be placed over 2.5" away in my experience if need to due to your trim/frame.
Been using Z wave devices since 2017, AAA battery powered sensors are the way to go, I think I go through so many coin based (20XX) batteries, that AAA are the way to go if possible

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Nov 21, 2025 04:05 PM
126 Posts
Joined Nov 2005
jferre1Nov 21, 2025 04:05 PM
126 Posts
Thanks for posting. Going to try one for garage door since the Ryobi app I have for my opener doesn't do the notifications any longer.

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