The Arable Mark 3 is a multifunctional crop sensor to help farmers leverage the full potential of digital agriculture. It collects plant, weather, and soil information and uploads it to the cloud via a cellular link where sophisticated data analytics enable intelligent crop-management decision-making. The plant monitoring includes measuring chlorophyll density, evaporation, wetness, the canopy temperature, and heat stress; temperature, pressure, humidity, and rainfall are just some of the weather data functions. The Mark 3 was designed for extended use under harsh farm conditions.