# Clausius BT — Seltron Thermostats app

> Seltron Thermostats app (iPhone/iPad app by SELTRON d.o.o..)

- Source: https://appshunter.io/ios/app/clausius-bt/id1599744081 (this page in markdown: same URL + `.md`)
- Developer: [SELTRON d.o.o.](https://appshunter.io/developer/894504883)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 21 MB
- Languages: American English
- Released: 2022-08-30
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/clausius-bt/id1599744081/reviews.md

## What is Clausius BT?

Clausius BT app enables you to have a complete control over heating or cooling. The app is compatible with Seltron room thermostats RT.. and WT.. and a room unit RCD20. They connect with the app via Bluetooth.  

The app lets you: 

- set a desired setpoint temperature 
- adjust a heating or cooling schedule 
- set user functions 
- turn heating or cooling on or off 
- detect and help troubleshoot issues. 

 For any questions or feedback contact us at support@seltron.si.


## Version history (last 5 releases)

### 1.4.5 — 2025-10-28

Added support for RCD20W.

### 1.4.4 — 2025-10-17

Revert due to RT/WT connection issue.

### 1.4.3 — 2025-10-15

Aded support for RCD20W.

### 1.3.2 — 2025-07-14

Add support for zone controller room units.

### 1.3.0 — 2024-08-28

Minor updates and performance improvements.

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## More apps by SELTRON d.o.o.

- [SeltronHome Clausius](https://appshunter.io/ios/app/seltronhome-clausius/id894504880)
- [SeltronHome Kelvin](https://appshunter.io/ios/app/seltronhome-kelvin/id1214028429)

All apps by SELTRON d.o.o.: https://appshunter.io/developer/894504883

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*