By Kim (21/01/2021)
This is a must with covid-19 if you are unfortunate enough to catch it you can monitor oxygen levels. AXXXX
By Dave (14/11/2020)
This is an inexpensive and useful bit of kit that is simple to use.
By \\\it is an excellent little device and good value (26/10/2020)
An excellent little vevice ,easy to use and understand