The small buoy system is specially developed for the field of surface water monitoring. It adopts low center of gravity design, PE shell, EVA filling, and embedded screw fixing, which makes the buoy operation more stable and reliable. The diameter is only 80cm, and the weight is only 40KG. It can be placed manually with no need for hoisting, suitable for online water quality monitoring of city rivers and lakes. The buoy adopts solar energy power supply, and it can select GPRS, 3G, 4G, Beidou or NBIOT for remote data transmission, supporting PC or mobile APP remote data access. It can be equipped with low-power smart water quality sensor, optional multi-parameter water quality sensor (7 parameters), UV254 COD and ammonia nitrogen, and the sensor is equipped with self-cleaning brush, with no need for frequent maintenance, suitable for long-term online monitoring.

Low center of gravity design, more stable and reliable, light weight and compact, it can be placed with optional multiple parameters with no need for hoisting, supporting fluorescence method dissolved oxygen, four-electrode conductivity, fiber optic turbidity, chlorophyll, blue-green algae, pH, ORP, NH4- N ammonia nitrogen, UV, COD or oil-in-water sensors with self-cleaning brushes, no need for frequent maintenance, and it can choose GPRS, 3G, 4G or NB-IOT for remote data transmission.