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  • 31/12/2020

    Very good product and accurate... I thought the brand name of the fingertip pulse oximeter was Boxym but it is Yonker.... nevertheless... it is almost accurate (up to ±3% depending on humidity, room temperature and atmospheric pressure)... I check my heart rate manually and electronically (via fingertip pulse oximeter Model: YK-80B) at the same time and the findings of measurement was almost the same. Manually (using fingers for 1 minute) the heart rate was 70 bpm while electronically (using the new fingertip pulse oximeter) was 67 bpm.... Value for money.... I recommend that product for sure....

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  • 14/07/2021

    The Jonker pulse oximeter version 1.0 arrived in just four days and at the moment it works very well. It is equipped with the guarantee, the cable to hang it around the neck and the instructions also in Italian. The instrument has some importance for checking the correct functions of the body, by measuring the percentage of hemoglobin in the blood. The display in a healthy subject should be more than 99%. As you can see in the photos mine reaches 98% on the finger of the left hand, while it touches the 99% with the fingers of the right hand (trust even without photographic proof)

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  • 03/12/2020

    good Oximeter. Very nice blue/yellow color display. I like the graph display. Running on 2 AAA standard batteries. Accurate readings. (heart rate is fluctuating sometimes until steady value, Oxi is always 99%) Nice glossy finishing design. Delivered with a strap cord. Very happy with it. Good value for that kind of money.

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  • 24/09/2020

    it works well when you get it positioned in the right place on your finger. you can adjust the display to flip around in one of four directions for easy viewing of the screen. the parameters of the BPM and the O2 values can bet set in the set-up menu. it needs 2 x AAA batteries to power it up, the cover on the bottom slides off to fit them.

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  • 19/12/2020

    Convenient inexpensive device. It measures blood оксигенацию and pulse. Very easy to use. They say the necessary thing in coronavirus time. Don't forget to prepare two AAA batteries. And if оксигенация is less than 95 percent, that's a reason to think.

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  • 21/01/2021

    10/12/21 I placed the order (CZ warehouse) yesterday, 20/1/21. Packaging okay. The product looks quality, works fine. It needs two small batteries.

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  • 27/12/2020

    This is my second purchase of this oxymeter. It works flawlessly. Good construction for an excellent price. I could find such devices locally costing three times more than the sum paid for this item. Very good purchase.

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  • 26/12/2020

    I took 2 pieces. You have to wait several seconds to get a reliable reading. CE (China Export) mark. Multilingual instruction sheet. Fast delivery in 18 days.

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  • 15/12/2020

    The product came in 20 days, 17 tl tax came out, it's okay to work. It's powered by 2 aa batteries and it's not coming out of it. I held my breath and observed that the oxygen level dropped to 93, which is good.

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  • 11/12/2020

    He arrived in two weeks. 2 AAA batteries are not included. This product has a wide range of values up to 4.000-300.000 Ft. Compared to the mid-range devices available on Mo., the price is very affordable.

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