Free chlorine handy photometer
Range: 0.00 …
Total chlorine handy photometer
Range: 0.00…
Economical Pocket size pH Tester
pH / Temperature Meter, 0.1 pH Resolution, replac…
Standard Portable pH Meter with 0.01 pH resolutio…
Pocket TDS Pen, Range: 0 to 1990 ppm
Range: 0 to 1990 uS/cm
EC: 0 – 3999 uS/cm, TDS: 0 – 2000 ppm
Range: 0 to 1990 μS/cm
TDS tester, Range : 0 to 1990 mg/L (ppm)
Standard Portable DO Meter
O2 Range: 0.0 to…
pH: 0.0 to 14.0 pH, EC: 0 to 1990 uS/cm, TDS: 0 t…
Digital Refractometer for Seawater Measurements
Phosphate handy photometer
Range: 0.00 to 2…
Iron handy photometer
Range: 0.00 to 5.00 p…
Free & Total Chlorine Professional Photometer…
Ammonia (Medium Range) Professional Photometer
Ammonia (Low Range) Professional Photometer
…
Iron (High Range) Professional Photometer
0…
Free & Total Chlorine and pH Professional Pho…