The present invention connects to tubing through which gas flows to a patient. An alert notifies monitoring personnel that oxygen flow to the patient has been interrupted, because the tubing has been disconnected. The invention comprises an adapter that is connected to a gas or oxygen source and a nipple over which the tubing fits and through which oxygen flows to the patient. When the tubing becomes disconnected from the nipple, the oxygen flow actuates an alert. In one embodiment, the invention includes a fixed arm and a swing arm. A latch and a spring that pull the fixed arm and swing arm toward each other connect the two arms. When the tubing becomes disconnected, one arm rotates and activates a switch that sends a signal to an alert that is preferably audible.
