For online silicate monitor and other products, samples are free except you will bear the express cost. An express account such as DHL or FEDEX is needed. We are keen for your understanding that we have a lot of samples to send every day. If all the freight are borne by us, the cost will be very high. In order to express our sincerity, as long as the sample is confirmed successfully, the freight of the sample will be offset when the order is placed, which is equivalent to free delivery and free shipping.

Shanghai Boqu Instrument Co., Ltd. stands in the forefront of their online phosphate analyzer market. Boqu Instrument has created a number of successful series, and online conductivity meter is one of them. For better durability and endurance, our professional engineers successfully developed residual chlorine sensor with high quality. With the built-in self-diagnosis function, it can make sure the accurate data be delivered. All indicators and processes of turbidity sensor from Boqu Instrument meet the requirements of national indicators. It can easily connect to the computer for monitoring.

Our company will adhere to high standards of professional ethics and deal with our customers with integrity and fairness to achieve long-term success. Get quote!