The Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001 was acquired in AliExpress Cofoe Official Store. It detects the temperature of the body or objects without contact through the infrared radiation that we all emit naturally and shows it on the LCD display in just a second after pulling the trigger.
No need to pull over, it works 1 ~ 3 cm away. Uses German probe with accuracy of ± 0.2º C. The backlight uses 3 different background colors to help diagnose fever: green for normal temperature, orange for low fever and red for high fever.
Works in two modes: the first allows you to measure body temperature and the second allows you to measure the temperature of objects, Like water, milk, food, etc. It stores up to 50 measurements and turns off automatically.
Motivation and Choice of Cofoe KF-HW-001
I already have some body thermometers purchased in China that I have reviewed here on the Skooter Blog. Check out:
- Infrared Thermometer Digital Speaker, from 29/02/2012.
- Body Digital Thermometer (32~ 42 ° C), from 28/10/2013.
- Digital Thermometer Body Infrared Sensor with LCD 1.0 ", from 30/10/2013.
The Infrared Thermometer Digital Speaker, bought there in 2012, it was already an infrared thermometer, but the technology was still not as good as that of the Cofoe KF-HW-001. It needs to be against the forehead to work. Never used it much, at first I couldn't configure it correctly, but then I found out it was because the battery CR2032 who came with him was weak. For some reason he was somewhat overlooked.
The Body Digital Thermometer (32~ 42 ° C) is what I use until today. It is a basic thermometer, of those used in the armpit, in the mouth, or in the rectum. For adults it works very well (in the armpit, I haven't tested the other modes) and it only has the inconvenience of taking a minute to show the temperature, and need to be cleaned later.
Por fim, the Digital Thermometer Body Infrared Sensor with LCD 1.0 " I also use it today. It is instantaneous and very good for taking the temperature of the ear. The temperature of the ear is more accurate than that of the armpit, but it is also bigger (up to 38º C is normal).
The great advantage of Cofoe KF-HW-001 in relation to these other three is that he is contactless, you can take the temperature of babies and children easily, instantly, even when they are sleeping. It is much more practical than a traditional thermometer. As it is non-contact it is not necessary to clean after each use. And use 2 Batteries AAA, that can even be rechargeable, different from batteries CR2032 and LR41 that I use on other thermometers.
AliExpress has several options of non-contact infrared thermometer. They are very popular due to the COVID-19 pandemic, as they are being used at the door of several commercial establishments, hospitals, etc. to measure customer temperature in a safe and non-invasive way.
The choice by the Cofoe KF-HW-001 it was because I already bought one Fetal Doppler of the same brand, that I showed here in Skooter Blog, and be satisfied with it. It seems to me to be a reliable brand for medical equipment.
The Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001 came in a bubble envelope. Inside it was the product box, somewhat crumpled on account of transportation, but the product was in perfect condition. Inside the box, beyond the device, was the instruction manual in English.
Check out the photos unboxing from the Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001:
To test Cofoe KF-HW-001 used two rechargeable AAA batteries. Beyond the trigger, there 3 side buttons: SET, MEMO e MODE. The SET button is used to change some settings, how to display degrees Celsius or Fahrenheit, adjust the temperature threshold for alert warning, turn the speaker on or off (beep), and set up a offset (displacement) for the indicated temperature.
The MEMO button allows you to check the latest 50 measurements made with the equipment. Por fim, the MODE button allows you to switch between body and object temperature measurement modes.
The selected mode appears in Chinese on my Cofoe KF-HW-001, but it is easy to identify which mode it is in: he always calls in body mode, which is the text that appears a little further down the upper left corner. By pressing MODE it switches to object mode, which is the text that appears right at the top right corner.
I noticed that after my purchase Cofoe already changed the device there in the ad. Now the mode is indicated with icons, that make sense in any language. Furthermore, the texts written on the sides of the device are now in English.
I did some tests measuring my own temperature and the values were plausible. I also measured the temperature of various objects. Por fim, my dog helped to test a fever situation. As their temperature is higher, raising an ear and pointing at their ear shows us something in the 38º C range, that equates to fever in humans.
No body mode or Cofoe KF-HW-001 operates in the range of 34.0º C to 34.9º C with an accuracy of ± 0.3º C, and from 35.0º C to 42º C with an accuracy of ± 0.2º C.
In object mode it acts from 25.0º C to 34.9º C with an accuracy of ± 1º C, from 35º C to 42º C with an accuracy of ± 0.3º C, and from 42.1º C to 45º C with an accuracy of ± 1º C. It is important to note that 25º C to 45º C is a somewhat limited range. I would prefer to be able to measure objects colder and hotter than that. But objects is not the specialty of the product, so this is more like a bonus.05
Check out the photos Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001 in operation and also the video of unboxing and tests:
These are the package tracking information with the Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001, obtained from the AliExpress system:
2020.09.02 16:02 (GMT-7): Delivery successful 2020.08.26 10:31 (GMT-7): Cleared customs 2020.08.20 10:53 (GMT-7): Started customs clearance process 2020.08.20 10:53 (GMT-7): Held by customs 2020.08.20 10:52 (GMT-7): Accepted by Last Mile Carrier 2020.07.27 23:30 (GMT-7): Departed country of origin 2020.07.27 02:26 (GMT-7): Shipment left country of origin warehouse 2020.07.27 02:26 (GMT-7): Shipment accepted by airline 2020.07.26 14:44 (GMT-7): Shipment at country of origin warehouse 2020.07.25 13:08 (GMT-7): Shipment at country of origin distribution center
And these are the information obtained on the site of the station:
16:02 [REMOVED] / SP Object delivered to the recipient 02/09/2020 10:12 [REMOVED] / SP Object left for delivery to recipient 01/09/2020 13:48 INDAIATUBA / SP Objeto encaminhado de Unidade de Tratamento em INDAIATUBA / SP for distribution Unit in [REMOVED] / SP 26/08/2020 10:58 CURITIBA / PR Objeto encaminhado de Unidade de Distribuição em CURITIBA / PR for Treatment Unit in INDAIATUBA / SP 26/08/2020 10:56 CURITIBA / PR Customs inspection completed 20/08/2020 11:24 CURITIBA / PR Objeto recebido pelos Correios do Brasil Informar nº do documento para a fiscalização e entrega do seu objeto. Click here My Imports 07/08/2020 02:58 SINGAPORE / Objeto encaminhado de País em CINGAPURA / countries in International treatment unit / BR Informar nº do documento para a fiscalização e entrega do seu objeto. Click here My Imports
I don't know the criteria of AliExpress or the sellers to choose which country to send to, but it is a fact that objects posted in Hong Kong tend to arrive faster, Sweden is a happy medium, and packages posted in Singapore tend to be much slower. It seems to me that it is because of the routes, say packages from Singapore pass through Alaska before coming to Brazil.
Ultimately, this package came through Singapore and arrived in 39 days. Meanwhile, the oximeter that I bought the same day and came through Hong Kong it just arrived in 15 days. Of course, the Post Office, one of the worst parcel shipping companies in the world, usually has a large part in any delay.
Por fim, This is the table-summary of purchase:
|Product Name:||Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001|
|Store:||AliExpress Cofoe Official Store|
|Current value:||R$ 26,50 (US$ 4,68)|
|Payment Method:||Credit Card Visa International|
|Shipping Type:||Aliexpress Standard Shipping|
|Package Home Country:||China|
|Time in Transit:||39 days|
|Type Marked Content:||Other|
The Cofoe KF-HW Non-Contact Digital Infrared Thermometer-001 funciona e é uma alternativa barata de termômetro sem contato e instantâneo. Ele se soma ao meu time de eletrônicos de monitoramento de saúde que já conta com medidor de pressão arterial and oxímetro de dedo, além dos outros termômetros mais básicos mostrados no artigo.