Abstract: A fluid supply warning and communication system including a digital regulator in fluid tight engagement with a primary fluid reservoir. A method of using the fluid supply warning and communication system by flowing a fluid from a primary fluid reservoir to an end use appliance and detecting flow rate and pressure of the fluid with a digital regulator. A gas supply warning and communication system including an oxygen flow monitor that monitors SpO2, flow rate, pulse rate, and battery levels. A method of using the gas supply warning and communication system by flowing oxygen from a primary gas reservoir to an end use appliance, and measuring SpO2, flow rate, pulse rate, tank status, and battery levels.

Abstract: A fluid supply warning and communication system including a digital regulator in fluid tight engagement with a primary fluid reservoir. A method of using the fluid supply warning and communication system by flowing a fluid from a primary fluid reservoir to an end use appliance and detecting flow rate and pressure of the fluid with a digital regulator. A gas supply warning and communication system including an oxygen flow monitor that monitors SpO2, flow rate, pulse rate, and battery levels. A method of using the gas supply warning and communication system by flowing oxygen from a primary gas reservoir to an end use appliance, and measuring SpO2, flow rate, pulse rate, tank status, and battery levels.

Abstract: A fluid supply warning and communication system including fluid tight engagements being made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A gas supply warning and communication system including a first upstream gas path, a second upstream gas path, and a downstream gas path made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A method of increasing humidity in a downstream gas path in the gas supply warning and communication system by flowing gas through a downstream gas path tubing that increases humidity to an end use appliance.

Abstract: A fluid supply warning and communication system including fluid tight engagements being made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A gas supply warning and communication system including a first upstream gas path, a second upstream gas path, and a downstream gas path made with tubing having at least one connector end chosen from a universal connector, a twist-on nipple, and a v-shaped end. A method of increasing humidity in a downstream gas path in the gas supply warning and communication system by flowing gas through a downstream gas path tubing that increases humidity to an end use appliance.