Basic parameters
Power supply mode
Solar power supply, 40ah lithium battery, 30W solar panel
Low power design
Continuous cloudy and rainy weather, can be used normally for more than 15 days (report data once every half an hour)
Position indication
Expandable audible and visual alarm
data transmission
4G transmission
Positioning function
GPS and Beidou dual-mode positioning
Carrying capacity
6 probes can be installed, with diameter ≤ 75mm; Probe length ≤ 400mm
Buoy size
0.6m*0.6m*0.7m； Net weight of buoy: 35kg
Measurement parameters
Five conventional parameters of water quality: pH, dissolved oxygen, conductivity, turbidity and temperature (expandable chlorophyll, blue-green algae and other sensors)
Measurement parameters
Measurement type
measuring method
Range range
measurement accuracy 
PH
Electrode method
0-14
zero point two five
conductivity
Electrode method
0-20000 μ S/cm
±3%
turbidity
Infrared light scattering method
0.01-3000NTU
±5%
dissolved oxygen
Fluorescence method
0-20mg/L
±3%
temperature
Resistance method
0-80°C
0.15°C