Before purchase, a used pulse oximeter should be tested to ensure that key components such as the display, probes, alarms, and battery are functional. Additionally, consider the type of pulse oximeter and its compatibility with existing equipment, according to the Medical Equipment Buying Guide by MedWOW.Continue Reading
Pulse oximeters exist as standalone and modular units. If purchasing a used modular unit, it must be compatible with existing equipment. Most pulse oximeters also interface with equipment like printers, computers, and other monitoring equipment, so a used pulse oximeter should be compatible with these existing devices as well, states MedWOW.
Multiwavelength oximeters should display SpO2 values of at least 70 percent to 100 percent with ± 3 percent accuracy during testing. Pulse rate measurements should be in the range of 30-240 beats per minute with an accuracy of ± 5 bpm. Ensure that visual and audible alarms indicating sensor off, low battery, and high and low SpO2/pulse rate values are functional, and check automatic switch to backup battery power and total battery life. The battery life of pulse oximeters should be at least four hours for use in a facility and at least eight hours for transport use outside a facility, notes MedWOW.Learn more about Diagnostics & Imaging