# Third Reality Contact Sensor (Can not connect)

**URL:** <https://community.homey.app/t/third-reality-contact-sensor-can-not-connect/137192>\
**Category:** Devices\
**Created:** [May 27, 2025, 10:41pm UTC](https://community.homey.app/t/third-reality-contact-sensor-can-not-connect/137192 "2025-05-27T22:41:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Player2](https://avatars.discourse-cdn.com/v4/letter/p/fbc32d/32.png) [@Player2](https://community.homey.app/u/Player2)\
**Post date:** [May 27, 2025, 10:41pm UTC](https://community.homey.app/t/third-reality-contact-sensor-can-not-connect/137192/1 "2025-05-27T22:41:43Z")

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I have the ThirdReality Contact sensor, which I believe is supported via the app and I am not able to get it to connect.

I install the ThirdReality App and go to add the device through that app.  
I get the pop up showing the device and telling me how to connect.

The app reads hold the reset buttons until the red light is blinking.

First, issue the red light never blinks. It just cycles blue and then back to solid red.

If I let go of the button when the light turns red it blinks blue, which I believe is pairing mode, but it will never discover the device.

I also tried to add as a generic Zigbee with no luck.

Any suggestions would be appreciated.

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [May 27, 2025, 10:43pm UTC](https://community.homey.app/t/third-reality-contact-sensor-can-not-connect/137192/2 "2025-05-27T22:43:16Z")

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> [@Player2](#):
>
> First, issue the red light never blinks. It just cycles blue and then back to solid red.

Please follow the _device manual_ on how to activate pair mode.  
Apps can give odd or plain rubbish advice on that subject.

> [@Player2](#):
>
> I also tried to add as a generic Zigbee with no luck.

This most probably means it has not been in pair mode (yet).

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<div class="post-metadata">

**Author:** ![Player2](https://avatars.discourse-cdn.com/v4/letter/p/fbc32d/32.png) [@Player2](https://community.homey.app/u/Player2)\
**Post date:** [May 28, 2025, 12:05pm UTC](https://community.homey.app/t/third-reality-contact-sensor-can-not-connect/137192/3 "2025-05-28T12:05:21Z")

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Thanks for the reply.  
I did follow the manual on how to connect. It is simply press the reset button until the red light turns on release and then a blinking light appears.

Even when I do that I am not able to get it to connect.

EDIT: Well I have no idea what I did differently, but it worked this morning when I decided to try again. Followed the same process as outlined above in the case anyone else ever has this issue.