<br>In this time of crisis when the healthcare methods are each overloaded and their facilities at larger dangers of spreading contagion then this nifty little system that 'should' not price an excessive amount of though costs have been hyped ignorantly from the £20 or so they had been promoting fro in the direction of £40, aside from these that have simply appeared on Amazon and thus possible or [BloodVitals experience](https://wiki.armello.com/index.php/Book_Your_Blood_Check_-_Maidstone) of dubious quality. Nevertheless we did our research and bought one that's been on the marketplace for a number of years with loads of feedback in order that we might help monitor oxygen levels at this present time of worldwide crisis so as to know where we stand. In fact it is good to get some base line readings so as to make sure these oxygen sensors truly work as this video illustrates as we try the Zacurate oximeter bought from Amazon for £36 (Zacurate®