This is an Industrial Scientific 0.5 LPM gas regulator. It is used for calibration gas and transportable cylinder applications. Here's some helpful information:
It has a preset flow setting between 0.10-2.50 LPM.
It is compatible with various cylinder sizes and gas suppliers.
It is often used to calibrate combustible sensors on meters.
The regulator fits 34-liter aluminum cylinders and 58 & 103-liter cylinders.
It has an easy on/off knob for simple use.
A blinking green light on a connected device indicates that it is not connected to the network.
A yellow warning alarm indicates an interruption in the network connection.