IOT Water Quality Monitoring System
Probe Sensors:
- temperature 0 ~ 70C
- chemical oxygen demand (COD) 0 ~800mg/l
- biological oxygen demand (BOD) 0~800mg/l
- dissolved oxygen (DO) 0~50mg/l
- pH 0~14 units
- TDS 0~100g/l
- TSS 0~1000 mg/l
- ammonium 0~1800 mg/l
- nitrat 0~40mg/l
- conductivity 0~100mS/m
- salinity 350PSU
- depth 0~100m
- ORP -1400~1400Mv

Data Logger, Controller and Modem:
- monitor display color touch screen
- GHz CPU, 1GHz RAM, 4GB on board RAM
- PSU 10~30VDC
- communication module: Up to 8-SMR (smart digital sensor)
+ I/O Moduel (Counter or status input, Relay output, analog input & output)
- 100Mbps Ethernet & WLAN
- USB connectivity for data transfer offiline
- 4G communication module (850/900/1800/1900/2100MHz)
- Operating System
File transfer (SSH), r-synch or FTP-backup