How do we choose a high-quality formaldehyde detector?

1, take a look at the formaldehyde detector sensor.

Household formaldehyde detectors usually use semiconductor sensors instead of electrochemical sensors. The sensor is the core and the most expensive component of the detector. Due to insufficient technical level in China, there are few electrochemical formaldehyde sensors that can meet the accuracy requirements. They all rely on imports, which makes the cost of sensors higher. The stability of semiconductor sensors is very poor and can only be used for qualitative judgment. They cannot meet the digital display requirements of the instrument, and are generally not used on the instrument. To determine whether the sensor is a semiconductor, you can start from the following aspects.

(1) Observe the sensor type of the inlet of the detector. The electrochemical sensor is relatively large, the diaphragm is white, the semiconductor sensor is small, and the color is usually gray or black.

(2) See if the price is reasonable

2, take a look at the accuracy of the formaldehyde detector.

According to the national standard GB \ T18883-2002 “Indoor Air Quality Standards”, the decimal point of formaldehyde concentration can only be accurate to two digits, that is, to 0.01mg / m3, which is also true for dozens of professional instruments. Thousands of dollars. The products of regular manufacturers are designed in strict accordance with national standards, and it is impossible to be accurate to three decimal places. If the propaganda accuracy of the merchant is 0.001, it can basically be determined that the formaldehyde detector is a household product.

3, Check the standby time of the formaldehyde detector.

Standby time is the simplest and most effective method to judge whether a formaldehyde detector is an electrochemical sensor or a semiconductor sensor. The working power of the electrochemical sensor is very small, the main power consumption of the instrument comes from the circuit board. Semiconductor sensors work by heating and consume more than ten times the electrical energy of electrochemical sensors. The standby time of the formaldehyde detector of the electrochemical sensor exceeds five days, and the standby time of the formaldehyde detector of the semiconductor sensor does not exceed twelve hours.

 4, online inquiry of the scale and qualification of formaldehyde detector manufacturers.

Regular manufacturers have their own official websites. Before purchasing a formaldehyde meter, you can check whether the manufacturer has an official website and search for the manufacturer’s name. From the manufacturer’s official website, you can learn a lot of information about the company, such as team building, production qualification, whether to establish ISO Product quality system, whether there is office space, workshop, factory pictures, etc. At the time, you can also log in to the website of the Industry and Commerce Bureau where the manufacturer is located to further find the authenticity of the enterprise, main business, and establish anti-tag manufacturers and cabin manufacturers. You can also log on to the Trademark Office website to see if it is an officially registered trademark. In addition, you can log in to the website of the State Intellectual Property Office to check the authenticity of product patents.

Tips on how to remove formaldehyde in a new house:

1. Keep the house ventilated. The new house should last at least 2 months. At the same time, the formaldehyde volatilization rate is very slow, so by adjusting the indoor temperature and humidity can accelerate the formaldehyde volatilization rate.
2. The activated carbon absorption method can be used. Placing 50 grams of activated carbon per square meter indoors can play a good role in adsorbing formaldehyde. At the same time, the activated carbon should usually be replaced every 7-8 months.
3. Plant adsorption method, many green plants such as Chlorophytum, cactus, chrysanthemum, iron tree, chrysanthemum, etc. have strong ability to absorb formaldehyde. These plants act as decorative agents while absorbing formaldehyde. Still others are very effective in removing formaldehyde from new homes. Tea, salt water, grapefruit peel, onion slices, pineapple slices, white vinegar aromatherapy, etc. all have certain effects.
4. Use emerging scientific preparations and finished scientific research products. Examples include formaldehyde trapping agents and emerging photocatalytic decomposition methods.

XI’AN Spring Technology Co., Ltd. specializes in producing circular push-pull self-locking connectors that can be used for formaldehyde detectors