Both instruments provide full-scale pH readings and allow the user to select the temperature readout in Centigrade or Fahrenheit. Other features include automatic calibration, automatic temperature compensation, selectable EC/TDS conversion factor, adjustable conductivity temperature coefficient, dual level LCD, stability indicator, Battery Error Prevention System and battery percentage gauge indicating battery strength.
Part Number | Model | Dimensions | Capacity | pH Range | EC Range | TDS Range | Temp. Range | pH Calibration |
HA-991300 | Multiparameter Meter, (Low Range Cond. & TDS) | 5.9" x 3.1" x 1.4" | 7.4 oz | 0.00 to 14.00 pH | 0 to 3999 μS/cm | 0 to 2000 ppm (mg/L) | 0.0 to 60.0°C | Automatic at 1 or 2 points with 2 sets of memorized standard buffers |
HA-991301 | Multiparameter Meter, (High Range Cond. & TDS) | 5.9" x 3.1" x 1.4" | 7.4 oz | 0.00 to 14.00 pH | 0.00 to 20.00 mS/cm | 0.00 to 10.00 ppt (g/L) | 0.0 to 60.0°C | Automatic at 1 or 2 points with 2 sets of memorized standard buffers |