# Bug in Ruuvi tag temperature sensor calibration using iOS Ruuvi Station app version 0.7.6 (206)

**URL:** https://f.ruuvi.com/t/bug-in-ruuvi-tag-temperature-sensor-calibration-using-ios-ruuvi-station-app-version-0-7-6-206/5262
**Category:** 🇬🇧 Ruuvi Station application (mobile + web)
**Created:** [8 December 2021 01:35 UTC](https://f.ruuvi.com/t/bug-in-ruuvi-tag-temperature-sensor-calibration-using-ios-ruuvi-station-app-version-0-7-6-206/5262 "2021-12-08T01:35:52Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![zoinkazoid](https://f.ruuvi.com/letter_avatar_proxy/v4/letter/z/7cd45c/32.png) [@zoinkazoid](https://f.ruuvi.com/u/zoinkazoid)
#### Post date: [8 December 2021 01:35 UTC](https://f.ruuvi.com/t/bug-in-ruuvi-tag-temperature-sensor-calibration-using-ios-ruuvi-station-app-version-0-7-6-206/5262/1 "2021-12-08T01:35:52Z")

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Looks to be a Celsius to Fahrenheit conversion related bug.

When I navigated to “Sensor Settings → Offset Correction → Temperature” screen, the “Original measured value” is reported as 63.58 °F. I tapped the “Calibrate” button, then entered an expected temperature value of 64.1. The corrected value is then reported as 147.31 °F, which is clearly bogus. Seems like the code that processes the entered value thinks the units of the value that I entered are in Celcius, even though I set the “Temperature Unit” in the app’s settings to “Fahrenheit”.