A pulse oximeter can provide an early warning of oxygen deprivation and breathing problems associated with COVID-19 pneumonia. Acting on information from public health representatives, CenCal Health procured and distributed 2,000 pulse oximeters to various health care providers in Santa Barbara and San Luis Obispo counties. CenCal Health is the Medi-Cal health plan that contracts with over 1,500 physicians, hospitals and other providers in these two counties on the Central Coast.