Total Dissolved Solid Meter
TDS-3: 1 ~ 999 PPM
TDS-2: 10 ~ 9990 PPM

Panel type TDS meter
Range: 1 ~ 9990 PPM

Industrial Water Quality Montior
Source water reading: 
1 ~ 1990 μs/cm(1 ~ 1000 PPM)
RO water reading:
1 ~ 1990 μs/cm(1 ~ 1000 PPM)

Microprocessor Water Quality Monitor
Resistivity: Range: 
0.00MΩcm~20.00 MΩcm 
Conductivity Range: 
0.00μs/cm~200.0 ms/cm
Temperature: 0~100^oC

Portable pH/ORP METER
Range: pH: 0.00~14Ph
mV: -1999~+1999mV

Conductivity Monitor
Conductivity Range: 
0.00μs/cm~2000μs/cm