Downloadable mobile application for use by residential and commercial propane consumers in monitoring propane tank levels, procuring propane tank refill service, and requesting propane tank maintenance; Propane tank sensors being liquid level sensors; Propane tank sensor being liquid level sensors for monitoring propane tank levels for use with gas grills, gas smokers, gas patio heaters, and gas fire pits

software as a Service (SaaS) featuring software for creating, managing, and sharing digital checklists and workflow tools for educational and business purposes.