# VAKKA Temp RH Concrete Sensor

> VAKKA Temp RH Concrete Sensor (iPhone/iPad app by Lim Construction Materials Testing, Inc..)

- Source: https://appshunter.io/ios/app/vakka-temp-rh-concrete-sensor/id1578673020 (this page in markdown: same URL + `.md`)
- Developer: [Lim Construction Materials Testing, Inc.](https://appshunter.io/developer/1578673022)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 9.0 · 23 MB
- Languages: English
- Released: 2021-09-06
- Data updated: 2026-05-20
- User reviews in markdown: https://appshunter.io/ios/app/vakka-temp-rh-concrete-sensor/id1578673020/reviews.md

## What is VAKKA Temp RH Concrete Sensor?

The VAKKA series concrete maturity and relative humidity sensors are among the fastest and most reliable concrete sensors available today.  VAKKA is designed and manufactured in the USA by HGCR Technology, (HGCR) LLC.   VAKKA boasts the world’s fastest environmental stabilization time by drastically reducing condensation.  Within minutes of concrete placement, thanks to our patent-pending protective sensor housing, the project manager will be able to immediately begin to collect temperature and/or RH data at the time of placement.  With correct data throughout the monitoring period, the maturity estimates become more accurate. VAKKA conforms to ASTM C1074, ASTM 2170, ACI 318, ACI TC 228, and most DOT specifications.


## Version history (last 5 releases)

### 1.46 — 2023-04-27

Minor bug fixes

### 1.42 — 2022-08-31

Support for higher speed data transfers

### 1.23 — 2021-09-29

Updated email entry screens

### 1.22 — 2021-09-10

Updated sign up screen

### 1.20 — 2021-09-08

Updated splash screen

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## Related topics

[vakka temp rh concrete sensor](https://appshunter.io/ios/topics/vakka-temp-rh-concrete-sensor) · [vakka](https://appshunter.io/ios/topics/vakka) · [concrete construction](https://appshunter.io/ios/topics/concrete-construction)

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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 2026-05-20.*