Check4Green is a startup founded in 2016 in Romania that provides smart monitoring solutions using sensors and an IoT platform. It aims to provide easily integrated smart solutions to solve problems arising from integrating IoT devices. It offers both hardware sensors and a software platform tailored for customers' requirements. The platform allows customers to monitor sensor readings and analytics to make decisions. Pricing starts at $9.99 per month for basic monitoring up to $24.99 per month for an enterprise plan with advanced analytics and API access.