Battery powered hand-held humidity, temperature, pressure radiosonde for ESP32-S3 mini boards with integrated 128x64 OLED display and deliquescence test containers.

Housing for battery powered hand-held radio sonde for humidity, temperature, pressure and other sensors with I2C interface, with support for different ESP32 mini and XIAO sized ESP32 boards, with integrated 128x64 SSD1306 and SH1106 OLED displays. Housing for battery-less ESP32 mini and XIAO sized boards with sensor port. Deliquescence test containers for humidity sensor accuracy checks and calibration.

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