Formaldehyde detector is an instrument for detecting formaldehyde. Generally, semiconductor sensors and electrochemical sensors are used to realize the rapid semi-quantification of formaldehyde in indoor air on the spot, which is characterized by simple structure, small size, intuitive,easy to carry and use. It can be widely used for on-site quantitative and qualitative detection of formaldehyde in the air of living rooms, residential areas, public places and factories.
Why need a formaldehyde detector?
▲ ZE08K-CH2O formaldehyde module
Nowadays, whether it is moving a new house or renovating an old house, the generation of formaldehyde is inevitable. It may exist in any corner of the house: beds, sofas, wardrobes, curtains, desks and books, etc., all have the danger of producing formaldehyde.
Formaldehyde is a first-class carcinogen. Long-term inhalation of excessive formaldehyde will cause upper respiratory tract diseases. In severe cases, gene mutation and chromosomal damage may also occur.
The complete release of formaldehyde needs 3 to 15 years. So formaldehyde testing before moving in is necessary. The ideal testing method is to find a local third-party testing agency and let it conduct professional testing. Then purchase formaldehyde detector for testing, it is very important to choose the correct and reliable formaldehyde detector.
Winsen Technology's upgraded electrochemical formaldehyde module ZE08K-CH2O has the unique advantages of small size, fast and accurate detection speed, direct on-site detection and contact detection available, etc. It is very suitable for medium and high-end formaldehyde detectors
Refrigerant leak detector
As refrigeration technology becomes more and more mature, air conditioners have a variety of selective refrigeration methods and refrigerants, but currently the most common and widely used in the air conditioning market is vapor compression refrigeration. This cooling method has a strong cooling effect and is very popular. However, it is worth noting that because the vapor compression refrigerant is prone to have high pressure during use, it is easy to cause leakage of the refrigeration equipment pipeline. Therefore, the safety during use has become the focus of attention.
In the "Montreal Protocol", the chlorofluorocarbon freon gas, referred to as CFC, has the greatest effect on the destruction of the ozone layer and has been banned from being used.
Hydrochlorofluorocarbons are referred to as HCFCs, including R22, R123, R141b, R142b and other ozone layer destruction coefficients are only a few percent of R11, so HCFCs are regarded as the most important transitional substitutes for CFCs. R22 is limited to be phased out in 2020, R123 is limited to use until 2030, and developing countries can delay it for 10 years.
Hydrofluorocarbons are referred to as HFCs, mainly including R134a, R125, R32, R407c, R410a, R152, etc. The ozone layer destruction coefficient is 0, but the climate warming potential value is very high. The "Montreal Protocol" does not stipulate its trial period, but it is classified as a greenhouse gas in the "United Nations Framework Convention on Climate Change" Kyoto Protocol.
Ozone layer destruction potential, climate warming potential, safety including flammability and toxicity, have become the three primary considerations for refrigerant selection.
Refrigerant leakage is a kind of failure phenomenon of air-conditioning refrigeration system. The leakage of refrigerant will bring a series of adverse effects to the normal operation of refrigeration equipment, and bring a lot of inconvenience to operation and maintenance. For example, If it leaks into the unit, the performance of the unit will deteriorate and the cooling capacity will decrease. If it leaks outside of the unit, it will pollute the air environment, endanger personal safety, and affect the performance of the unit.
At present, the most common refrigerant leak detection methods are the visual leak detection method and the soapy water leak detection method. Therefore, it is particularly important to find leakage faults accurately, quickly, scientifically and professionally and take corresponding safeguard measures in time to reduce the losses caused by leakage.
Using Winsen refrigerant gas leak sensor to protect ozone layer
▲ MP510C refrigerant gas leak sensor
Winsen Technology has launched a semiconductor principle gas sensor MP510C for refrigerant gas leak detection. Support multiple refrigerant gas detection (such as R32, R134a, R410a, R290, etc.). For the convenience of customers, Winsen Technology has simultaneously launched a module ZP201 using MP510C sensor for refrigerant gas leak detection.
ZP201 refrigerant gas detection module adopts advanced chip thick film semiconductor gas sensitive element, which has extremely high sensitivity to Freon R32 refrigerant gas. After aging and calibration, the module has good consistency and very high sensitivity.
ZE08K-CH2O electrochemical chemical formaldehyde module is a universal, small Module. The use of electrochemical principles to detect CH2O in the air, which has good selectivity and stability. At the same time, it has digital output and analog voltage output for easy use. ZE08K-CH2O is a universal gas module designed to design mature electrochemical detection technology with excellent circuit design.
The MP510C Freon gas sensor uses a multilayer thick film manufacturing process to fabricate heating and measuring electrodes and a metal oxide semiconductor gas-sensitive layer on a miniature Al2O3 ceramic substrate, and encapsulate it in a metal casing. When the detected gas exists in the ambient air, the conductivity of the sensor changes. The higher the concentration of the gas, the higher the conductivity of the sensor. This change in conductivity is converted into an output signal corresponding to the gas concentration through the circuit. The product has good anti-interference ability against common gases such as alcohol and acetic acid in usage scenarios.
ZP201 refrigerant gas detection module adopts advanced multi-layer thick film manufacturing process semiconductor gas sensor element. The gas sensor element contains a filter adsorption layer to reduce the interference of alcohol and other gases, and has extremely high sensitivity to refrigerant gas. The module has been aged , calibration, calibration, with good consistency and high sensitivity.
How to choose the right sensor for your project?
We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.
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