Better than the second generation millet meters home air purifier 2S evaluation

Along with the cold air, there is a pure taste of the northern oysters. In the winter in the north, the sky is always grey and white, and you often cannot see the road when you go out in the middle of the day. When we can't change the outdoor air, we can only keep the indoor air fresh. Then the air purifier is undoubtedly the necessary artifact for you to survive in the hazy days. Not long ago, Xiaomi's ecological chain released its new empty net product, the Xiaomi Mi Air Purifier 2S, priced at 899 yuan.

The new 2S is not an upgraded version of the millet air purifier 2, but rather it is a combination of millet 2 and millet pro. The product retains the filter element of the millet 2 generation purifier and the CADR value of 310m3/h. At the same time, this new product also carries Pro's laser particle sensor and OLED screen, which can display the PM2.5 value in real time, compared to the 2nd generation infrared. The sensor has a lot of detection accuracy. Not only can it collect PM2.5 values, but it can detect particles as fine as 0.3 microns.

Say so much in the actual use of the process how the effect? ​​In the end it is not worth buying it? With these questions, we first got the millet air purifier 2S after the actual test, detailed evaluation of the objective reality The data.

Before starting the evaluation, may wish to take a look at the value of this air purifier?


[Atlas] function upgrade Mi Jia air purifier 2S new products

In this evaluation, we use the quick answer method to help you understand the most you want to know quickly.

NO, 1 millet air purifier 2S worth buying it?

The new official purifier currently costs 899 yuan, 200 yuan more than the millet air purifier 2. Let's take a look at what upgrades are included in these 200 pieces.

1. A fully-integrated OLED display that incorporates the same process as Pro can not only display real-time PM2.5 information, Wi-Fi connection status, but also provide current temperature and humidity information in the room. In the test, we compared the PM2.5 value of the professional detector with the millet air purifier 2S display, and the result was still very accurate. In Xiaomi's official website, the price of a similarly-priced air detector is about 399 yuan. It's still 199 yuan cheaper.


â–² Mi Jia official website screenshot


â–² Millet air purifier 2S compared with professional detector PM2.5 value

2. In order to reduce the environmental pollution caused by the electroplating process, 2S has eliminated the metal sheet metal parts inside the fuselage, and the overall weight has been further reduced, including only 4.5 kg including the filter element. Even if the girl can easily move indoors, and Xiao Bian as a female man, it is effortless.

At the same time, the housing of the millet air purifier 2S is based on weather-resistant ABS material. Under long-term use and exposure, the body is not easy to yellow. From the test results, its actual purification efficiency is also good, and the entire house can be quickly purified within 20 minutes.

In terms of secondary consumables, the filters used in the 2S of millet air purifiers are the same as those used in the second-generation purifiers. They are divided into economic versions of 149 and one and 169/in addition to formaldehyde, and the replacement period is about once every six months. This is still a good deal. of. In addition, it is also a leader in the same price range, both in terms of noise control and smart operation. In short, ordinary users choose this purifier right.

NO, 2 millet air purifier 2S purification effect how exactly?

According to official data, Xiaomi Air Purifier 2S is suitable for use in a 21-square-meter space. It takes only 10 minutes to fully purify the air. The CADR value of the particulate matter is 310m3/h. In the actual test, we first selected a room of about 20 square meters, which resembled the living room environment of an ordinary family. After closing the air-conditioner to close the doors and windows, the colleague ordered two cigarettes and raised the indoor air PM2.5 value to more than 800. Then began to run millet air purifier 2S, the wind speed to maximum, record PM2.5 value every five minutes.


â–² Indoor initial PM2.5


â–²Test data

It can be seen from the data that the PM2.5 has been reduced from over 500 to 35 in 15 minutes, and the purification efficiency is still very good. In addition, after reading the purifier for 10 minutes from the curve, the PM2.5 value was directly reduced to 119 ug/m3, and the purification speed was good.

NO, 3 millet air purifier 2S noise how?

Noise is a problem that everyone is very concerned about. High noise affects daily life. During the test, we tested the maximum wind speed and the noise level of the sleeping state. The noise of the tested environment itself is about 40dB, so we sleep. When the wind speed is, it is actually no data can be measured. If the human senses are heard, there is no sound.


â–² Test data: maximum wind speed


â–² test data: sleep mode

At maximum wind speed, the noise value was 73.6 dB, slightly higher than the normal number of decibels. In the sleep mode, almost the same as the noise value in the room itself, almost no sound can be heard.

NO, 4 What about wind power?

High wind speed can accelerate the speed of indoor air flow and increase the speed of purification. Xiaomi air purifier 2S can be reduced from 520ug/m3 to 35ug/m3 in 15 minutes, and wind power is still possible. Because we are worried that everyone can't see the value, Xiaobian used a small windmill to demonstrate it.

It can be clearly seen in the follow-up diagram that when the Xiaomi air purifier 2S is operating at the maximum wind speed, the wind power is still very large.

NO, 5 millet air purifier 2S intelligent control experience?

Millet air purifier 2S still uses Mijia APP, just follow the instructions to configure Mijia APP to achieve smart control of the mobile phone. After the APP is opened, click the + sign on the top to add the device, follow the prompt steps to add the device, help the Xiaomi air purifier 2S select WiFi, and enter the password to complete the connection, the process is still very simple and convenient.

Through the app, Xiaomi Air Purifier 2S can switch between different modes of operation. The most commonly used mode is the automatic mode and night mode. The mobile phone can also switch the device on and off.

In terms of the degree of intelligence, Xiaomi Air Purifier 2S has a number of smart designs that can be used to remotely control purifiers, indoor and outdoor air quality detection, intelligent reminder change filters, and device sharing through mobile phone connections. Of course, the most technological sense is to cooperate with Xiaomi's other smart devices to perform product linkage. For example, when the OLED screen shows that the humidity is too low, the humidifier can be turned on and controlled by the Mijia APP to optimize the status in the home.

Summary: As of this writing, the test part of this product is basically complete. Based on the above test data, Xiaomi Air Purifier 2S is very good in terms of product performance, design, and human intelligence. Its performance is sufficient to exceed most of the same-price air purifiers that are sold, and new laser particulate sensors are added. And OLED screens allow it to better guard your family's healthy breathing. Our conclusion is also obvious, this product is currently priced at 899 yuan, it is still recommended to buy.

Door Lock Motor

Door Lock Motor Characteristics 1. No direction: don't need to distinguish the door direction, left and right sides, both inside and outside the door, can be universal. (convenient purchase locks and reduce inventory).

Door Lock Motor Dc Gear Motor

2. Power: the power consumption is only equivalent to one 5 of the electric control lock, electric lock, 3 A magnetic lock power to open the door, often consumes 0.27 A. And spiritual lock unlock instantaneous current is less than 0.5 A, reduced the entrance guard, talkback host power consumption.

3. No collision: close the door without collision, reduces the choice of door closers requirements (not necessarily with 65 kg of door closers, door closers are free to choose to suit the door), to solve the building door because the door closers clash of the hydrodynamic force is too high, it is not easy to make the door more deformation, prolong the service life of the body.

4. The voice is light: close the door automatically locked, no noise, solves the noise due to electric control lock itself.

5. Life is long, life is up to 350000 times


Operating temperature range:

Mini Door Lock Motor should be used at a temperature of -10~60℃.

The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.

If a lock motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.


Storage temperature range:

lock motor should be stored ta a temperature of -15~65℃.

In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.


Service life:

The longevity of Door Lock Motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.



●Use with a load that exceeds the rated torque

●Frequent starting

●Momentary reversals of turning direction

●Impact loads

●Long-term continuous operation

●Forced turning using the output shaft

●Use in which the permitted overhang load or the permitted thrust load is exceeded

●A pulse drive ,e.g.,a short break,counter electromotive force,PWM control

●Use of a voltage that is nonstandard as regards the rated voltage

●Use outside the prescribed temperature or relative-humidity range,or in a special environment.

●Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.


when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you

Looking forward to your inquiry. Welcome to our factory.

Lock motor


Door Lock Motor,Mini Door Lock Motor,Door Lock Dc Motor,Door Lock Gear Motor

Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com