Hanna Portable pH Meter with SMART Electrode - HI98140
Hanna Portable pH Meter with SMART Electrode - HI98140,pH/EC/TDS/Temperature Portable Meter, range: pH 0.0 to 14.0 pH EC 0.00 to 4.00 mS/cm TDS 0 to 1999 ppm (mg/L),Multiparameter pH/ISE/EC/DO/Turbidity Waterproof Meter with optional GPS,HI98150 pH / ORP / °C Meter + SMART Electrode, Waterproof - Hanna Instruments (Thailand),HANNA instruments HI9813-51 Portable pH EC TDS Temperature Meters Instruction Manual