If it is a formaldehyde detector for use at home, which brand should you choose?

In fact, I have used Lekong for household formaldehyde detectors, which use laser technology from the United States, and the accuracy is also very high.

The detection data of Lekong formaldehyde detector is relatively accurate, many people have said that it is very good after using it, and it is recommended that you can try it, after all, it is produced by large manufacturers, and the quality is still very reliable.

There are three main types of household formaldehyde detectors on the market:

One is a hand-held formaldehyde detector, that is, an instrument with electrochemical direct reading, which can achieve real-time reading, but the sensor of this kind of instrument is ineffective and susceptible to the interference of environmental decoration odor and is not accurate, and the value will change when blowing a breath, which is called "air anemometer";

The second is the formaldehyde kit, the detection principle is based on the national standard method, which is more reasonable. However, the national standard law stipulates that a sampler is required to collect 10 liters of air, and the self-test box only stipulates that it can stand for 30 minutes, which is not scientific;

The third is a new generation: ask pigeon pump suction air formaldehyde detector, equipped with a sampler, users can collect a fixed volume of air by themselves, and then according to the national standard method phenol reagent chromogenic method detection, to make up for the lack of formaldehyde kit, suitable for their own formaldehyde testing.

The better brands of formaldehyde detectors are Quanzheng Instrument, Interscan4160, Ji Swan, PPM-400ST, Taiyikang.

1. Quanzheng instrument

Quanzheng is also the first company to launch a formaldehyde detector to match the phenol reagent, which greatly increases the accuracy and stability of the detection; The Quanzheng detector is composed of imported silicon light source, square colorimetric utensils, imported sensors developed and designed by Silicon Valley, Quanzheng 3S cloud computing microprocessor, winter temperature compensation system, and built-in hyperbolic detection system, which can directly display the formaldehyde content in the measured sample.

2、interscan4160

The instrument has a battery-powered built-in sampling pump, and the detection element is a high-sensitivity, high-stability, high-accuracy electrochemical sensor, the sensor is linear and stable, and the results are accurate. The high-precision electrochemical sensor with patented technology has a short response time, continuous pumping sampling, small size, light weight, simple operation, easy to carry but high.

3. Ji swans

The swan detector is composed of a host, a sample pretreatment device and a reagent package, etc., packaged in a whole box, the instrument is small in size, light in weight, simple in operation, and suitable for use in the field and laboratory. The solid-state light-emitting device is used as both the light source and the monochromator, and the light source monochromator, the color slot, and the sensor are integrated, and there is no moving part.

4、ppm-400st

The use of imported chips, cloud computing microprocessors and special phenol reagents for the laboratory makes the instrument have the advantages of high accuracy, high stability and repeatability; In addition to accuracy, the instrument also has a very professional appearance of laboratory instruments, and the instrument also has temperature, humidity display, power display, large-capacity lithium battery to ensure battery life, and the same configuration of products is very cost-effective.

5. Taiyikang

The instrument has a built-in working curve, which does not need to configure standard solutions, and only needs to be calibrated with matching reagents for rapid quantitative determination of samples. The sample is colored and measured in the same closed vessel (cylindrical), which does not need to be transferred, improving the detection accuracy. It is simple to operate and easy to use.

Formaldehyde detector purchase skills:

1. Look at the sensor.

Formaldehyde detectors usually use electrochemical sensor method, which has been authoritatively demonstrated at home and abroad. Observe the sensor type through the air inlet of the detector. Secondly, you can consult the merchant about the type of sensor, if it is a semiconductor, you don't consider it directly, and you can't measure formaldehyde if you buy it.

Look at it again**, hundreds of formaldehyde detectors must use the principle of semiconductor detection, and they can be directly ignored.

2. Look at the accuracy.

The national standard GB T18883-2002 "Indoor Air Quality Standard", the formaldehyde concentration is accurate to two decimal places, that is, accurate, and the products of regular manufacturers are designed in strict accordance with national standards.

Lekong Formaldehyde Detector, Lekong Formaldehyde Detector LKC-200 is a new household formaldehyde concentration detection instrument.

Nowadays, there are many materials for making furniture panels, and only by choosing the right one can you buy affordable and economical furniture that can be used for a long time. Of course, after the home decoration is completed, it generally needs to be ventilated for at least three months, and after three months, you can generally find a professional company if you have the conditions, and of course, there are some people who will choose testing instruments, which is particularly convenient. So let's introduce the use of household formaldehyde detection instruments?

What instruments are available for measuring formaldehyde?

Does the household formaldehyde detection instrument work?

1 The use of formaldehyde detection instruments is useful. Nowadays, everyone pays attention to the amount of formaldehyde in the room, so various methods are used to remove it. It is very useful to use formaldehyde detection instruments to test.

2 Some simple, such as electrochemical, only need to consider the position, the time of reading, and then to distinguish the interference, and individual instruments also need to have a zeroing operation. There are complexities, such as spectrophotometers, in addition to the above, but also to know the flow control, the reading time is also more particular, but this method is more accurate, and it is also a nationally recognized way of operation.

3 Generally speaking, the instrument for detecting formaldehyde is still effective, and the accuracy may be relatively low, so it is recommended to find a professional air quality testing agency to test the home air environment.

What instruments are available for measuring formaldehyde?

1. Portable formaldehyde detector: Now portable formaldehyde detector (100 yuan detector) is divided into three types, air flow rate detector, semiconductor detector, and electrochemical detector. The flow rate, temperature, humidity and so on of the indoor air will have an impact on its test results.

There are hard standards for the detection of formaldehyde in the country, and it is necessary to use phenol test wild plum spectrophotometry for detection.

2. Air flow rate detector: It is to give a formaldehyde value according to the flow rate of air. If the air flow is fast, the result will be low, and the air flow rate will be slow, and the formaldehyde value will be high, or even explode.

There are not a few detectors with this principle, and the cost is low, but it can be sold for 5060 yuan on the Internet. The detection effect is not very professional.

3. Semiconductor detector: The principle is that the oxidation reaction between the metal and the gas in the air causes the change of the resistance of the metal itself to determine the concentration of the gas in the air. From the principle of reaction, it is not selective for reactants in the air. Therefore, the values are not of reference value.

4. Air purifier: The main internal components are a fan with several filters, and some accompanying technologies. The air purifier was not originally for formaldehyde, but in recent years, formaldehyde pollution has been stirred up.

The air purifier is working to remove formaldehyde, that is, the filter, and most of them use activated carbon.

Agrith, Prosecutor, Celestial, etc.

Take, for example, prosecutors. The inspector brand is a brand of Shanghai Aike Biotechnology, which is an enterprise that produces, develops, distributes and distributes wholesale inspector formaldehyde detectors, air detectors, formaldehyde scavengers and self-test boxes, and enjoys a high status among consumers.

The inspector has strong brand strength, credit, abiding by the contract, ensuring product quality, and has won the trust of customers with the principle of multi-variety management characteristics and small profits and quick turnover.