Economical Pocket size pH Tester
pH / Temperature Meter, 0.1 pH Resolution, replac…
EC: 0 – 3999 uS/cm, TDS: 0 – 2000 ppm
Standard Portable pH Meter with 0.01 pH resolutio…
pH / Temp Meter with Resolution 0.01 pH & Acc…
Range: 0 to 1990 μS/cm
pH: 0.0 to 14.0 pH, EC: 0 to 1990 uS/cm, TDS: 0 t…
pH: 0.00 to 14.00 pH, EC: 0.00 to 6.00 mS/cm, TDS…
Free chlorine handy photometer
Range: 0.00 …
Total chlorine handy photometer
Range: 0.00…
Free & Total Chlorine Professional Photometer…
Free & Total Chlorine and pH Professional Pho…