HumidCalc vs Humidity Checker °

＊Weather data supported＊ A versatile humidity calculation app for everyone from general users to engineers — also suitable for agricultural applications. This app allows you to easily calculate indicators such as the Discomfort Index, WBGT (estimated heat stress index), Volumetric Absolute Humidity (an important indicator for influenza prevention), and Humidity Deficit (HD) used in agriculture, using weather data. You can also calculate a wide range of air properties from dry-bulb temperature (normal air temperature) and wet-bulb temperature obtained from ventilated psychrometers such as the Assmann psychrometer.
Atmospheric pressure can be entered manually. The app supports 12 indicators across 16 calculation items, and unit conversion between Celsius/Fahrenheit and SI/Imperial units can be performed instantly by switching the temperature unit setting. ■ High-Precision Calculation Engine This app uses the Wexler–Hyland equations combined with numerical analysis, enabling highly accurate and stable calculations across a wide range of environmental conditions. ■ Calculable Indicators * Wet Bulb Temperature * Dew Point Temperature * Frost point temperature * Relative Humidity * Humidity Ratio(Absolute Humidity) * Mass-based absolute humidity * High-resolution mass-based absolute humidity * Volumetric absolute humidity * Humidity Deficit (HD) * Vapor Pressure Deficit (VPD) * Enthalpy * Specific Volume * Saturation Vapor Pressure * Water Vapor Partial Pressure * Boiling Point of Water * WBGT (Estimated value) * Discomfort Index (DI) Supplementary Notes on WBGT & Discomfort Index Outdoor WBGT is defined as: WBGT = 0.7 Tnw + 0.1 Td + 0.2 Tg (°F) Since globe temperature (Tg) is not an input parameter, it is estimated from dry-bulb temperature (Td) using: Tg = 1.45 Td − 27.162 (°F) Td and Tg show a strong correlation (n = 17,376, R² = 0.919). Natural wet-bulb temperature (Tnw) is obtained by converting the measured wet-bulb temperature from an Assmann psychrometer to natural conditions, assuming a wind speed of 98.4 fpm (0.5 m/s) or less. Details of this conversion algorithm are omitted. The Discomfort Index (DI) is calculated as: DI = 0.4 × (Td + Tw) + 15 (°F). ■ Weather Data & Sensors By tapping the Weather Data button, you can obtain current atmospheric pressure, dry-bulb temperature, and wet-bulb temperature. On devices equipped with a barometric pressure sensor, pressing the MEAS button allows direct pressure measurement. Wet-bulb conditions can be set to Normal or Frozen (effective below freezing). Corrected values can also be displayed for non-ventilated psychrometers such as the August psychrometer (ventilated types recommended for accuracy). ■App Ecosystem Integration You can directly receive calculated dry-bulb and wet-bulb temperatures from the companion app “Calculator of Air”. (Please note that calculations must be performed in Calculator of Air before data can be transferred.) By combining HumidCalc with Calculator of Air, you can, for example, derive multiple air properties from known Enthalpy and Humidity Ratio values. ■Input Ranges * Dry-Bulb & Wet-Bulb Temperature: −22°F to 122°F (−30°C to 50°C) * Atmospheric Pressure: 17.72 inHg to 73.09 inHg (600 hPa to 2475 hPa) * Dew Point: −58°F to 122°F (−50°C to 50°C) * Relative Humidity: 0% to 100% (1% steps) ■Notes When using an August psychrometer, calculations assume an air velocity at the sensing element of 98.4 fpm (0.5 m/s) or less. As a result, calculated values may differ from those listed in humidity tables included with commercial August psychrometers. ■Disclaimer 1. Please use values within reasonable temperature ranges (approximately 32°F to 104°F / 0°C to 40°C). Extremely unusual inputs may produce inaccurate results. 2. While every effort has been made to ensure high precision, minor errors may occur due to floating-point limitations. 3. The developer assumes no responsibility for any damages resulting from the use of this app.

Humidity Checker brings accurate humidity and temperature conditions straight to your device. It comes in an elegant and familiar design - made to look like a classic analog hygrometer or thermometer. Free Features: - Current humidity and temperature displayed with analog-style dials - Optional dew point and wet bulb dials - Current weather - 8-hour look-ahead - 3-day forecast - Search for and save unlimited locations - Real indoor humidity and temperature from compatible Bluetooth sensors - Last 24 hours of sensor history - Custom target ranges for each sensor Premium Features: - Remove ads - Home Screen widgets - Full 24-hour look-ahead - Full 10-day forecast - Sensor alerts for high or low humidity, temperature and low battery Request More Features We appreciate your feedback! If you need a feature that isn’t currently available, we’ll definitely consider adding it to the app. You can submit feedback directly within the app. Reporting Bugs If you find a bug, please notify us so we can quickly get that fixed! You can submit bug reports directly within the app. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Govee is a trademark of its respective owner. Humidity Checker is an independent app and is not affiliated with, endorsed by, or sponsored by Govee. Bluetooth® is a registered trademark of Bluetooth SIG, Inc.