Up to 2 years of battery life, depending on usage.
DeVilbiss HAV-511 High Output Air Adjusting Valve with Gauge
DeVilbiss HAV-512 High Output Air Adjusting Valve with Gauge
DeVilbiss HAV-501 High Output Air Adjusting Valve with Gauge
DeVilbiss 803291 AIR ADJUSTING VALVE WITH DIGITAL GAUGE
DeVILBISS Air Adjusting Valve with Gauge HAV-511 180089
DeVilbiss Tekna 702737 Replacement Air Adjusting Valve For 703893 703894 703895
