Model TS-210 TS-230 TS-250 SC-210 SC-230 Parameter pH/ORP pH/ORP/Ion Conductivity / Resistivity / TDS / Salinity Display Graphical, Backlight Graphical Menu Yes, with setting overview Measuring Range -2~20pH -2000~2000mV -2~20pH -2000~2000mV 0.001~999,999 ppm 0.001~999.99 µmol/L 1.000~999,999 mmol/L 2~20pX 0μS/cm ~200mS/cm 0 ~ 20 MΩ·cm 0~2000 ppm 0~200 ppt 0 ~ 70ppt 0μS/cm ~1000mS/cm 0 ~ 100 MΩ·cm 0~2000 ppm 0~1000 ppt 0 ~ 70ppt Resolution 0.01pH 1mV/0.1mV 0.001pH 1mV/0.1mV 0.001pH 1mV/0.1mV 0.001ppm 0.001µmol/L 0.001mmol/L 0.001pX μS /cm: 0.001 mS/cm: 0.01 0.01 MΩ·cm 1ppm / 0.1ppt 0.01ppt Accuracy ±0.01pH ±0.05% ±0.005pH ±0.05% ±0.005pH ±0.05% ±0.5%(ppm, mol/L) ±0.005pX ±0.5% ±1% ±0.5% ±0.5% Temperature Compensation NTC30K / PT1000 ATC and MTC Linear(0~40%), Non-Linear, None compensation
Reference temp.: 0~40°C AutoRead Yes Data storage 100 sets 50,000 sets 50,000 sets 100 sets 50,000 sets Data transmitting -- Micro USB Micro USB -- Micro USB Calibration 1~3points 1~5points 1~5points 1~5points 1~5points Calibration record The last 1 The last 10 The last 10 The last 1 The last 10 pH Sensor status Yes -- -- Battery status Yes Power supply 4 x 1.5V AA or 1.2V NiMH 4 x 1.5V AA or 1.2V NiMH
Micro USB 4 x 1.5V AA or 1.2V NiMH
Micro USB 4 x 1.5V AA or 1.2V NiMH 4 x 1.5V AA or 1.2V NiMH
Micro USB Sensor connector BNC , Banana Suntex 7-pin Operating hours 380 hours or 200 hours(backlight) 260 hours or 150 hours(backlight) Size/Weight 194mm x 82mm x 38mm (L x W x H)/0.25kg Protection IP65