Nuki Opener - STR HT40 - Nuki Opener Beta - Nuki Developers
![Nuki Opener - STR HT40 - Nuki Opener Beta - Nuki Developers](https://developer.nuki.io/uploads/default/original/2X/f/f462917e310393458ab75644a8d0361b60744ee7.png)
Hi Nuki-Team, I have ordered a Nuki Opener and wanted to connect it now to my STR HT40, but with the first steps in the App-guided Tour I begin to struggle. During the App-guided Tour the connections are labeled with B+ and B- by Nuki. The documents and also the pictures of the connectors of the STR HT40 don’t show connections marked with B+ / B-. There is ET (white / brown) and BUS (blue / red). Can someone help me out here please? Thank you & regards, ApplesandPears
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![](https://developer.nuki.io/uploads/default/original/2X/2/29de53562c99571ed3d607a37a5d43da7546822b.jpeg)
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![](https://basic-tutorials.com/wp-content/uploads/2021/07/Nuki-Smart-Opener-Combo-12.jpg)
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![](https://static1.anpoimages.com/wordpress/wp-content/uploads/2019/10/nuki-opener-review-hero.png)
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Nuki Opener - Golmar Tekna V2 Plus - Nuki Opener Beta - Nuki
![](https://basic-tutorials.com/wp-content/uploads/2021/07/Nuki-Smart-Opener-Combo-01.jpg)
Nuki Opener Combo in test - how well does the smart door opener work?
![](https://sp-ao.shortpixel.ai/client/to_auto,q_glossy,ret_img,w_556,h_266/https://www.slimmedeuroplossing.nl/wp-content/uploads/2021/04/nuki-opener-set-teaser.png)
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