40 Pack for Medtronic Sensor Patches，Waterproof Guardian 4 Sensor Cover Patch，Hypoallergenic Pre-Cut CGM Sensor Patches Protect Your Sensors Continuously for 7 Days Long Stay

I have been using this for a while and definitely works!Keeps my sensor on and it's easy to remove.

These fit well and stick well as advertised.Perfect for use

My wife uses the Medtronic Guardian 4 CGM sensors, but has had problems with water leaking under the adhesive patches that come with them when showering. She had been using Tegaderm branded patches, which cover the entire sensor, but even these are not completely waterproof, so seeing these patches we thought we would give them a try. From the description it appeared as if these were going to be larger than the Tegaderm patches, but they are, in fact, slightly smaller. The patches themselves are also very fiddly to apply, due to the paper covers causing the patch to pull and twist, causing it to stick to itself, and once that happens there's no going back and the patch has to be thrown away. I fit her sensors and apply covering patches, so I'm used to dealing with these kinds of things, but I found the application extremely fiddly and problematic. After a few tries we got one covering the sensor, and my wife tried it in the shower, however water still leaked through under the surface of the patch. She has had to resort to wrapping her upper arm in clingfilm to try and keep the moisture out. Upon trying another patch, she wore it during a particularly hot day, and found that it eventually worked loose due to sweat accumulating under the surface.

I find these just about do that job I need them to do on my daughter, however we do a sensor change couple of times a week and these covers just about last that amount of time. I’d be worried about using them for longer than 5/6 days at a time.

Waste of money.

These both seal and hold onto the skin really well.They are waterproof and they do as promised hold on even after showering or swimming. They are very easy and quick to apply and they don't irritate the skin as they are hypoallergenic and latex free. Would have been nice to have had more in the pack but good so far.

The tape doesnt not secure the sensor well enuough to be reliable

This patches have been used on a Medtronic CGM and they have worked really well; the covers have stayed in place with no skin irritation and are waterproof, sweat proof and hyper allergic which is really helpful and convenient; they feel secure and it’s reassuring to know your equipment is being protected during wearing all day and night. Would recommend this product!!