It depends on the value of the sample. Generally, Shanghai Boqu Instrument Co., Ltd. will send free ph orp meter sample but the freight is charged by you. We always work with the most reliable courier company to deliver samples at an affordable price. Considering the long-term relationship development, we generally send free sample to customers with our good faith.
With years of focus on the R&D, design, and production of industrial level meter, Boqu Instrument has been widely accepted as a powerful manufacturer in the industry. Boqu Instrument has created a number of successful series, and suspended solid meter is one of them. BOQU mlss sensor is a result of mechatronics. It is developed, designed, and manufactured on the basis of machine body, microelectronic device, sensor, and actuator technologies. It is highly resistant to chemical substances such as alkali and acid. The product is more energy efficient. It has a natural energy-efficiency design by using premium wood materials that keep the sauna room exceptionally well insulated. Adopting photoelectricity coupling and isolation technology, it holds strong resistance to interference.
Our reliable quality of laboratory ion meter will definitely satisfy you. Ask!