Technology does not stand still and new functional gadgets are slowly replacing familiar analog devices. Over the past ten years, electronic thermometers have supplanted mercury thermometers in order.
Such devices are used not only in clinics, but also in everyday life. One of the clear advantages of electronic thermometers over old thermometers is a higher level of safety. They do not have mercury and glass, which means there is simply nothing to spray and fight. In addition, they measure temperature faster and more efficiently.
One of the brightest representatives of this segment of devices is the DT 635 infrared electronic thermometer from the well-known Japanese company A & D. As the manufacturer assures, it measures the temperature in just one second and does not need to be held under the arm or mouth, but simply put it on the forehead or position in the ear. But first things first.
The subject of our article is the digital infrared thermometer AND DT 635. Consider the characteristics of the model, its pros and cons, features of use, as well as the opinion of consumers. The gadget is not uncommon on the shelves of Russian pharmacies, where it can be bought within 1500 rubles.
Equipment
The A & D DT 635 thermometer comes in a small cardboard box. The packaging is high-quality and it feels like the same excellent gadget is waiting for you inside. On the front of the box you can see the name of the device, its image and key advantages - a large display, the presence of a watch and a temperature measurement in 1 second in the ear and forehead. At the ends there is a brief specification for the device and other information useful to the consumer.
Contents of delivery:
- electronic thermometer DT 635;
- battery;
- protective case;
- instruction;
- warranty card.
Separately, it is worth mentioning the instructions. Judging by the reviews of consumers, it is executed surprisingly efficiently and effectively. There are no familiar phrases, such as "unpack, use and protect from water and fire." Each stage is painted from and to. Moreover, the text part is competently supplemented by visual pictures.
Users note that after reading the instructions there are no questions regarding the operation of the device. There are no complaints about the font size either. Retirement age consumers and visually impaired people confirm this in their reviews of the AND DT 635 thermometer. The cover also deserves special attention, so we will take it apart.
Appearance
The device received a nice looking appearance and small dimensions (length 11 cm). The housing of the DT 635 digital thermometer is made of high-quality plastic and devoid of sharp corners. The whole design is smooth lines without any sharp transitions.
At the top of the device is a large oval-shaped screen, harmoniously poured into the exterior of the gadget. The display shows the current time between downtime or temperature. Under the screen is one single function button. The key is needed to switch from one mode to another: temperature measurement in the ear or forehead. To work with the first mode, you will need to remove the cap, and with the second - put it on.
On the back of the device is a small compartment for the CR2032 form factor battery. Reviews about the battery chosen by the manufacturer are not the best.
Many consumers complain that these batteries are rare in our stores and can only be found at specialized points of sale. While the "little" batteries (AAA) are in almost every and even the grocery store. So, after buying a DT 635 thermometer, it is worth stocking up with standard batteries.
Case
You will use it as often as the device itself, so it can be called an integral accessory. It is made of durable and high-quality plastic and painted in blue. Judging by the reviews, the case reliably protects the thermometer from falls and other physical influences.
There are two latches on the sides of the front. In addition to its main function - to protect the device, the cover can be used as a stand (in the vertical position of the device). For this, there is a special recess on the case.
Device in business
The manufacturer and marketers did not deceive consumers, and the DT 635 thermometer can really measure the temperature in one second, and take readings from both the ear and the forehead. Judging by the reviews, more accurate data are obtained in the first case.
Forehead temperature measurement
This is the easiest feature with a minimum of discomfort. To measure the temperature in this way, you need to make sure that the cover sits tightly in its regular place, then press the power button of the device and hold it until a double digital signal appears.
Then you need to attach the device with a lid to the forehead and press the button again. After the device emits a signal, the procedure can be called completed and the obtained temperature readings will be displayed on the screen.
The main thing here is to smoothly press the sensor to the skin. Judging by consumer reviews, many measure the temperature at the temple, because it is more even than the forehead. This option will be most optimal if it is necessary to find out the temperature in the child, without the need to disturb him once again with ear procedures.
Ear temperature measurement
In order to measure the temperature in the ear using a DT 635 thermometer, you need to completely remove the cap and make sure that the small button under the lid is not pinched. It is with its help that the device determines where the temperature measurements will be taken.
The procedure for taking readings is similar to the previous one. We click on the activation button of the device and wait for a double signal. After that, insert the device into the ear and press the button again. After a second, the current temperature should appear on the device screen.
Judging by the reviews, this method is less pleasant, especially for children, but the output data is more accurate.
Environmental measurement
The DT 635 thermometer also allows you to measure the ambient temperature: a room, a refrigerator, and even some objects. The process is the same as with the forehead. After activating the device, you just need to press the button and the ambient temperature will be displayed on the screen.
Similarly, you can measure objects. For example, to determine how hot the batteries are in your home or the optimum temperature of the drink for the child. Judging by the reviews, steam from hot tea can confuse the device, but the device copes very well with compotes, warm fruit drinks and other not very hot liquids.
Accuracy of measurements
Users compared the readings of a digital instrument with similar readings taken by classic mercury thermometers. In the case of an ear fence, the data completely coincided, while the testimony from the forehead sometimes gave an overestimated, or vice versa, underestimated result. But the difference was not critical - an average of 0.3 degrees.
But things are a little worse with the environment. The thermometer "lied" almost a degree to plus or minus. But for many, judging by the reviews, this difference is not significant.
Clock
In addition to the functions for measuring temperature, the thermometer can work in clock mode. You can set the exact time in the compartment using the special button where the battery is located. In the event that the user did not carry out the initial setup, the device after use goes into sleep mode and turns off the screen.
If you set the time, then with a break of seven seconds, the device will show it, alternating with the display of the ambient temperature. In tandem with a stand, a universal device is obtained - a thermometer with a clock. But here you need to understand that such use of the device consumes significantly more battery power.
Finally
Judging by the numerous consumer reviews, the device turned out to be successful. The thermometer is easy to use, quickly measures the temperature and does it from different places. In addition, the device copes well not only with the human body, but also with other objects, as well as with the environment.
A convenient case protects the gadget and turns it into a universal device: a clock and a thermometer. The model has no serious minuses, especially if you take into account its low cost. Some users complain about the big difference in temperature measurements on the forehead and in the ear, but here one important point to consider.
When taking samples from the forehead, a large role is played by external factors. After strong physical exertion or a cup of hot tea, the temperature can “jump” strongly (by 3-5 degrees). Therefore, the most reliable option is ear samples. But all this is written in detail in the instructions, so many negative reviews are written in vain. And the device itself fully justifies and fulfills its value.