4" Professional Touchscreen Patient Monitor - SpO2 & EtCO2 with Complete Accessories Kit. EtCO2 Precision: ±2mmHg (0-40mmHg range). ✓ EtCO2 Sampling Line Set. SpO2 Accuracy: ±4% (70-100% range). ✓ 4 " Touchscreen Monitor Unit.
eBay