4-20ma or rs485 modbus output CO sensor air monitor 1ppm resolution for gas detection

   Beijing Guoxinhuayuan Technology Co.,Ltd is a Hi-tech company with R&D, production, marketing, project implementation and after sales. We are focus on providing professional hydrology and meteorology monitoring device and technical service, and developed a series of flood early warning system products by ourselves, which owing more than 50 patents and 60 software copyrights. Then our product line is including monitoring products, communication products, early warning products and cloud platform. However, our products have been sold to more than 30 countries, such as Australia, Japan, Sri Lanka and so on. Especially our tipping bucket rain gauge is doing well in foreign countries. Meanwhile, our products are covered all provinces in China and we have Guangxi/Guangdong/Hunan/Hubei/Qinhai branches. 

Why Choose Us

FAQ

Q1. Can I have a sample order ?
High resolution electronic outdoor wind direction sensor
A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable.
High resolution electronic outdoor wind direction sensor
Q2. What about the lead time?
High resolution electronic outdoor wind direction sensor
A:Sample needs 3-5 days, mass production time needs 1-2 weeks.
Q3. Do you have any MOQ limit?
A: Low MOQ, 1pc for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order ?
A: Firstly let us know your requirements or application.Secondly We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places deposit for formal order.Fourthly We arrange the production.
Q6. Is it OK to print my logo on the products?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
High resolution electronic outdoor wind direction sensor
Q7: Do you offer guarantee for the products?
A: Yes, we offer 2-5 years warranty to our products.
High resolution electronic outdoor wind direction sensor
Q8: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less
than 0.2%.Secondly, during the guarantee period, we will send new one with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.