The Wohler A 550 is robust and easy to operate. It features a large 7" color touch screen monitor that can show up to 14 measurements and values at once, and is perfect for commercial and residential applications. Expandable with up to 5 sensors. Transfer data via A550 App. 4 year warranty on unit and sensors.
Includes A 550, NO/NO2 sensor, TD 100 Printer,hose 10 ft and gas probe 1 ft, air temp. probe, clamping cones, USB charger with micro USB cable, Li-Ion battery