Adafruit FONA - uFL Version Starter Pack [Discontinued] _ARD_SHIELD_AUDIO It uses a capacitive humidity

It uses a capacitive humidity sensor and a thermistor to measure the surrounding air

The finish is a gold plate - you won't get oxidation like with bare copper perf

Uses I2C (address 0x54)

Battery to last up to 2

Adafruit FONA - uFL Version Starter Pack [Discontinued] _ARD_SHIELD_AUDIO It uses a capacitive humidityBuild your own cellular project and get off the grid with FONA. This pack comes with an uFL antenna type FONA and paired with hand picked accessories. It's the Adafruit FONA uFL Starter Pack. The FONA miniGSM is an adorable all in one cellular phone module that lets you add voice, text, SMS and data to your project in an adorable little package. This module measures only 1. 75"x1. 25" but packs a surprising amount of technology into its little frame.