The Altitude Click Board™ from MikroE is an accessory board that enables the user to precisely measure altitude with 30cm resolution. The board employs a compact MPL3115A2 piezoresistive absolute pressure sensor that works with an embedded high-resolution 24-bit ADC to provide accurate pressure (Pascals)/altitude (metres) and temperature (°C) measurement. It features a wide operating range of 20 kPa to 110 kPa absolute pressure.