1, professional: to see whether a company is professional, to see the company's position in the industry and whether the equipment is advanced, whether the technical field of construction, the company's founding time is also an examination of the criteria, after all, the establishment of a long period of time, experience and technology are more mature.
Humidity measurement is not simply a technical problem, as a composite technology of electronic technology and physical and chemical specialties, experience is very important, ignorance is fearless, not all electronic engineers understand this, especially the design of the production process. Making a product is not the same experience as producing it. So unlike cottage products, choose a history, professional company is more secure, after all, these sensors we are not to buy their own use, is for the customer to use, there is a quality assurance is very important.
There are many temperature and humidity sensors on the market now, then there will be a big difference in quality, in order to be able to protect the quality and maintain good temperature and humidity regulation, then in the selection of the time to choose the influence of the general good temperature and humidity sensors are from the influence of the manufacturer, so that in the selection of parts and components as well as the manufacturing process will have a professional quality control department to stick to, you can rest assured that the purchase and use. The company's products and services are available in a wide range of colors and sizes.
Temperature and humidity sensors
2, equipment: temperature and humidity sensors are precision requirements, whether or not there is relevant calibration equipment to calibrate the product before leaving the factory is very important, either the accuracy of the device is the accuracy of the finished product. A set of high-precision humidity environment is expensive, and every year and the national standard of measurement for calibration and obtain a calibration certificate. These should be examined clearly with the manufacturer. 3% of the product accuracy, at least 1% of the device can be guaranteed.
3, batch: the production volume of the product is very important, the product does not have a batch, then the reliability of the device is not guaranteed, we must know that IC manufacturers usually do not accept small orders, and the electronic market cheap old IC, refurbished IC is the mainstream. This is the reason why some small factories have unstable product quality.
The simple way to determine the volume of the product is to look at the product shell to use the general shell or special open mold shell, usually only mass production of products will open the mold.
Soil temperature and humidity sensors
4, security; field, threatened everywhere. Data security issues are very important. Currently the Ethernet interface part, most manufacturers choose to integrate the protocol of the product, but these integrated modules are usually applied in commercial settings, in accordance with the most convenient way to use to make the factory settings, security is not enough, easy to be modified by the network attack. There have been such products, used in the public network, 2~3 months later, the network parameters were modified lessons. Therefore, professional manufacturers will generally reprocess this, rewrite the underlying program to enhance its security.
5, form factor: usually choose products that meet the standards, for example, the site usually have 86 junction box, the size of the product in line with the easy to install. Pluggable terminals or connectors are important, otherwise wiring for future construction and maintenance will be a pain. These are details that reflect the level of care the manufacturer has put into the product. As for aesthetics it's a matter of opinion, preferring compact products.
Temperature and humidity sensors
6, function: to figure out what they need to focus on the sensor. Now many products have some additional features in fact, the accuracy of the certain impact. Moreover, a sensor connected to so many wires, it is very troublesome, but also does not look good.
7, cost-effective: If there are many temperature and humidity sensors appear in front of the user's words, a comprehensive comparison of the performance characteristics, product operation, as well as price and other factors, after judging the cost-effectiveness of each temperature and humidity sensors, and then select the cost-effective one, at the same time in the selection of sensors according to their own needs to pick, can not blindly follow the wind to pick the use of the product is not great. The product.
8, perfect after-sales service: temperature and humidity sensor is an electronic product equipment, then in the use of the time will inevitably encounter many problems, then in the choice to buy the time to consult the manufacturer to give a clear exemption from the period of time as well as maintenance vouchers, etc., to choose a good after-sales temperature and humidity sensors can be used to give the user a greater ease of use in the later stages.