# S4h Pro

> Temperature monitoring and thermostat control for S4H-TMC-00 sensor. (iPhone/iPad app by Spel a.s..)

- Source: https://appshunter.io/ios/app/s4h-pro/id1116586911 (this page in markdown: same URL + `.md`)
- Developer: [Spel a.s.](https://appshunter.io/developer/665835958)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 4 MB
- Languages: American English
- Released: 2016-06-07
- Data updated: 2026-08-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/s4h-pro/id1116586911/reviews.md

## What is S4h Pro?

For using this app properly You have to own this S4h Pro device!

The S4H-TMC-00 temperature sensor is fitted with two external probe (2m long cable). The sensor can be used as a simple temperature probe or as a thermostat with two adjustable temperature limits. Information about temperature is sent from the sensor to the cloud via Wi-Fi and the home AP at 5-min interval. In the thermostat mode, notifications are sent outside of the selected time intervals when the temperature falls below or exceeds the preset limit. Information on the cloud is sent to your smartphone, where you can display it using the S4h Pro application as a numeric value or in the graph. The measuring range of the internal probe is from -50°C to +100°C (58°F ÷ +212°F).

## Key features

- Real-time temperature display
- Temperature graphing
- Adjustable temperature limits
- Thermostat notifications
- Cloud data synchronization
- Wi-Fi connectivity

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/s4h-pro/id1116586911/reviews.md

### 5/5 — Excellent app

*2017-11-28*

Set this up to monitor my freezer as I suspected my defrost cycle was not functioning correctly. This app and the hardware solution works really well. I used the graph function to see trend data.

## Frequently asked questions about S4h Pro

### What devices does S4h Pro support?

S4h Pro is designed to work with iPhones and iPods. It requires the S4H-TMC-00 temperature sensor to function.

### What is the temperature measuring range of the S4h Pro sensor?

The internal probe of the S4H-TMC-00 sensor can measure temperatures ranging from -50°C to +100°C (-58°F to +212°F).

### How often does S4h Pro send temperature data?

Temperature information is sent from the sensor to the cloud via Wi-Fi at a 5-minute interval. This data is then accessible through the S4h Pro application.

### Can S4h Pro alert me if the temperature goes out of range?

Yes, in thermostat mode, S4h Pro can send notifications when the temperature falls below or exceeds your preset limits, outside of selected time intervals.

### Is S4h Pro free to use?

Yes, S4h Pro is available for free. It is a companion app for the S4H-TMC-00 temperature sensor.

### How is the S4h Pro app updated?

The latest version of S4h Pro is 1.0.2, and it was last updated on March 6, 2023. Updates are released by the developer, Spel a.s.

### What is the user rating for S4h Pro?

S4h Pro has a perfect rating of 5.0 stars based on one review, indicating a highly positive user experience.

### What is the age rating for S4h Pro?

S4h Pro has an age rating of 4+, meaning it is suitable for children aged 4 and above.

## Version history (last 3 releases)

### 1.0.2 — 2023-03-06

- bug fixies

### 1.0.1 — 2019-12-18

some running improvement and bugs fixies

### 1.0.0 — 2016-06-07

This update is signed with Apple’s latest signing certificate. No new features are included.

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## More apps by Spel a.s.

- [Smart4house](https://appshunter.io/ios/app/smart4house/id665835955)

All apps by Spel a.s.: https://appshunter.io/developer/665835958

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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 2026-08-01.*