I use it everyday, keep it clean, no problems

I bought this for my aunt who is an artist and has been wanting a tattoo. She's been playing with this and it works perfect! I am actually having her design one for me now since this Copier is so easy to use and I'll bring the print with me to a tattoo artist.

This thermal printer has a good size and is very easy to use. The quality of the printed material is acceptable so I can say that I’m ok wit it in terms of the money I paid.

Got this as I'm asthmatic and it massively helps to monitor the indoor air quality it does exactly what it is ment to and in almost real time and if the air quality decreases I just crack a window and that usually helps it to go back to normal

Build quality is great aswell doesn't feel cheep at all the screen is clear bright and easy to read with brightness control also the controls are simple to use

If your looking to improve the air quality in your house this device helps and at the price it's well worth it

I bought this detector to provide radon measurements 24/7. Once the app is down loaded on your phone or computer, you have access to radon amounts constantly. I’m very happy with this radon detector.

I live in Alberta where radon level is a bit higher than other areas. Fir this, I was looking for a reliable radon monitor that would measure the radon level in my basement/entire house. This device can measure the radon level that looks accurate as I measured the radon level before with other device. It uses Smart life app that I already have installed for other devices and I like this reliable app. Also, this radon monitor does have an alarm system which is great, I don't need to worry until the alarm rings.

I don't know if it is 100% accurate, but it gives me a sense of the fluctuations in the radon levels in my house. I receive a chart of the radon levels by the hour every day on my cellphone, accessible from anywhere in the world. Highly recommended!

If this machine is accurate, this thing reads everything! It reads everything very quickly. Co2 takes several seconds to measure but if you blow directly into it, the measurement will settle down in about 20 seconds. It does have audible alarms too if you are not going to be attending to the machine. It has color coded readouts so you can quickly pinpoint areas you need to focus on or be concerned about. Anyone in the hotel or rental industry needs one of these. It also makes it easier to know if your air filters are still working. This is a great tool and I love it. I'm so glad I discovered it.

I have it sitting next to an air quality monitor that only checks air quality, temperature and humidity and those levels seem to match what this new monitor says pretty closely. The screen is nice and bright and quite easy to read. It came fully charged so I’ll give it workout for a few days to see how well the battery stays charged. The manual that came with it has very small print so I’ll probably have to study how to use it with a magnifying glass but it looks like it goes into great detail which I hope means that it will work how I hope it does. It’s getting close to the time of year around here when the furnace will be used a lot and this will hopefully help with peace of mind. Quite pleased with it at this point.

This air quality monitor is perfect. It’s compact, easy to use, and provides real-time readings on key metrics like CO2, humidity, and temperature... The display is clear, not sure about battery life but i will update later.

bought this little larger model in order to be able to clean more than one pair of glasses at one time. Happy with the purchase and how quickly it got delivered.

What a time saving machine! I wish i had bougth this before , the machine is pretty compact and quite easy to use ( i watch the instruction video on Yt) and i manage to make a nice result first shot .it took litteraly 15 second to make the stencil .i do recomend!

High sensitivity air quality sensor

Simple and easy to use.

The device reacts clearly to particles and although I don't have the means to calibrate its precision (except for the thermometer and the humidity meter, which is easily verifiable and in fact it was necessary to adjust it in the settings screen), I understand that it serves to get a fairly accurate idea of ​​what is happening around.

It was a reconditioned device and it arrived in perfect condition. Perhaps it gives the impression of being a somewhat "low quality" device, due to the type of plastic and design, very basic, but I suppose that is what you are paying for. So there is no complaint in this regard.

As an anecdote, it is curious that it starts beeping (the PM 2.5 goes up and such) when the neighbor starts smoking. Although you can still smell it, you begin to understand what you are detecting (and what you are not) with your own nose.