Measurement Computing's USB-502-LCD data logger measures and stores up to 16,379 relative humidity and 16,379 temperature readings over 0 to 100% RH and -35 to +80 °C (-31 to +176 °F) temperature range.
The user can easily set up the logging rate and start-time, download the stored data by plugging the module straight into a PC's USB port, and run the purpose-designed software under Windows®. Relative humidity, temperature, and dew point (the temperature at which water vapor in the air begins to condense) data can then be graphed, printed, and exported to Excel.
The high-contrast LCD can show a variety of temperature and humidity information. At the touch of a button, the user can cycle between the current temperature and humidity, along with the maximum and minimum stored values for temperature and humidity.
The data logger is supplied complete with a long-life lithium battery, which can typically allow logging for up to one year.
"We had expected to spend hundreds, if not thousands, of pounds on sensors and data recorders and then a complex task of installing instruments and getting them to talk to each other. Instead, a simple device containing the sensors that both records and logs temperature and humidity was ordered and arrived within days." John Fleming, Helensburg Music Society