Take control of all your simulations with the next-generation SpO2 pulse oximeter simulator, OxSim Flex. The world’s smallest SpO2 tester now provides complete flexibility in selecting saturation, pulse rate, and perfusion index. Users can create customized Preset Simulations for faster testing of oximeter performance and for alarm testing without having to change the monitor’s alarm settings! With Masimo Rainbow SET® compatibility and an OLED color display, the unit automatically detects the manufacturer of pulse oximetry. Weighs only 5 oz. and runs for 10 hours on a single AA battery.