Green Source Formaldehyde Detector How to say it, it feels generally accurate, unstable

The green source is garbage, not unstable, without any reference significance, it is all false values. It's a pure waste of my money. I bought a six-in-one, and the several values of the test are not accurate except for the temperature and humidity that may be slightly closer. It's rubbish, it's rubbish, it's rubbish.

The Green Source Formaldehyde Detector is a device used to measure the concentration of formaldehyde in the air. It uses sensors and technology to detect formaldehyde and output the results as digital or audible.

Regarding its accuracy and stability, it depends on a variety of factors, including the model, quality, conditions of use, as well as the method of operation. Some formaldehyde detectors may be more accurate and stable than others, but often need to be calibrated and validated to ensure they provide accurate results.

If you have doubts about the accuracy and stability of the Green Source formaldehyde detector, it is recommended that you contact the manufacturer or professional organization for consultation or calibration. They can provide more information about the performance and usage of the device and help you ensure its accuracy and stability.

Formaldehyde detection has national standards that can be followed, the detection principle is actually very simple, the most commonly used in the laboratory is also particularly suitable for measuring indoor formaldehyde is the phenol reagent method, the conditional will use chromatography, the instrument is more expensive than the cost of detection.

In 2019, CCTV also reported that most of the detectors on the market are inaccurate or have a large error, and even the detection of many exceeding the standard is not exceeded, formaldehyde is still very harmful, life is only once, how important and happy health is, and how sympathetic it is to see so many water drops.

I will share what I have learned with you, I hope it will be helpful to you, and you can make a discernment.

First, the electrochemical method of direct reading of the instrument, can achieve real-time reading, but many of the low-end sensors used are easy to fail due to environmental impact (to be honest, there is still a lot of room for improvement in domestic sensors), so that the detection results and the actual deviation is large, dozens of hundreds of such instrument sensors are not formaldehyde sensors at all, known as "air anemometer", this kind of instrument does not have tens of thousands of dollars don't want to measure indoor formaldehyde, indoor formaldehyde is relatively small if it exceeds the standard, and the sensitivity requirements for this kind of detector are particularly high;

The second is the formaldehyde kit, the detection principle is based on the national standard method phenol reagent chromogenic method, and the detection is relatively reliable in the first category (except for those in tens of thousands may be better), but the national standard law stipulates that 10 liters of air need to be collected quantitatively using a sampler, and the self-test box only stipulates: stand for 30 minutes.

How much of the volume of air reacts with the absorbent in these 30 minutes? This point is unpredictable, it may be that the indoor air circulation velocity is high and absorbs more, and the Brownian motion absorbs more quickly, on the contrary, the detection is not scientific, the randomness is too high, and it is best not to use it;

The third is a new generation: convenient pump-suction air formaldehyde detector, why is it convenient, because the professional testing company also uses the pump-suction type, compared with the traditional structure is more complex and professional, ordinary consumers will not operate, and the convenient pump-suction type on the market, optimized structure, easy to operate, although the process is the same, but it is indeed a lot simpler, completely according to the national standard detection method, the configuration of the pump-type sampler, users can collect a fixed volume of 10 liters of air by themselves, and then according to the national standard method phenol reagent chromogenic method detection, It makes up for the shortcomings of the formaldehyde kit.

Formaldehyde detector this instrument market is too messy, now a cat, a dog can be said to be inaccurate, the test formaldehyde gas is used electrochemical sensor, the cost of electrochemical sensor is more than 100 yuan, do you want to sell out of the ** money? The formaldehyde detector of 100-200 is not accurate at all, and it is pure foolishness! I hope you buy carefully!

It is advisable to buy some green plants and open the windows for ventilation! Hope!