G27827 ` Pegasus Electronics Digital Flow Meter Display

Pegasus Electronics Digital Flow Meter Display has a standard phone cord with male plug and a 9V battery snap. When you connect the 9V battery and press the built in button, the display shows "FLOW: 0.0LPM" or "SET DOWN". We have no info. This is new not a reject, however no information available. Size about 2.9" x 2.5" x 0.95" thick.