The price made me hesitant, but I was willing to give this Zacurate Pro Series 500DL pulse oximeter a shot due to its good reviews. After using it for a few weeks, I'm glad I did. It's surprisingly accurate; I compared it with my doctor's equipment and they matched up perfectly. However, the silicone cover feels a bit flimsy and I worry about durability over time. But for $22.99, this is an excellent, reliable tool to have on hand, especially during these respiratory-sensitive times.
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