For the regular dissolved oxygen meter product, the sample is free, but you need to bear the courier fee. Therefore, a quick account such as DHL or FEDEX is required. We beg you to understand that we send a lot of samples every day. If all shipping costs are borne by us, the cost will be very high. In order to express our sincerity, as long as the sample is successfully confirmed, the shipping cost of the sample will be offset when the order is placed, which is equivalent to free shipping and free shipping.
Apart from providing high quality ultrasonic level meter, BOQU also pays attention to the innovation to keep up with the fashion. We will show you the residual chlorine sensor series that is most popular with customers. BOQU online oil-in-water analyzer has gone through a series of third-party tests. They cover load testing, impact testing, arm & leg strength testing, drop testing, and other relevant stability and user testing. The product enjoys high resistance to vibration. Strict quality inspection ensures the quality of products. It has obtained CE, SGS, FDA, and other certificates.
BOQU aims to provide the best shopping experience to not only create value for consumers but company. Inquire!