Defibrillator: NIBP SPO2 CO2 12 lead ECG Pacing AED Defib Test Load Reports: CO2 Calibration Overdue Reports: Device Error Service Required NIBP, SPO2, ECG tested working. Defib output calibration, CO2 not tested. Screen seems a little blurry. PLEASE REVIEW VIDEO BELOW ** Please reference item #241202-0003-01 when contacting us about this listing. Return Policy Items are sold as-is as described and pictured. Most items come with a 7 day option to return and a 30 day limited parts warranty. Feel free to call before you buy. 888-649-6497