341350A-P Extech PH, Conductivity, TDS & ORP Salinity Meter. With Automatic Temperature Compensation for Conductivity & TDS and manual Temperature Compensation for pH (0 to 100°C). Thermistor probe measures 0 to 90.0°C
pH, ORP & Temperature Meter. Compact handheld meter displays pH or mV and Temperature simultaneously. It uses a standard pH or ORP electrode with BNC connector and has Automatic Temperature Compensation (ATC) when used with optional Temperature Probe
CL200 ExStik® Waterproof Chlorine Meter. This revolutionary technique measures Direct Total Residual Chlorine from 0.01ppm to 10ppm. It makes non-subjective measurements unaffected by interferences associated with traditional colorimeters and spectrophotometers like sample color, turbidity, light, and pollutants.