Oxygen concentration is measured by a standard zirconia oxygen sensor.
NEMA 4X fully enclosed water and dust proof control station with full view front window. Optional 12 or 24 volt DC direct power with or without back-up gel cell battery. Panel Viewable, seven segment, LED digital display for excess oxygen display. Adjustable fuel valve response speed to accommodate varying response cycles. Contact an MEI representative for no cost consultation regarding your specific application requirements.