The HI9813-61 is an economical, water resistant, portable meter that measures pH, conductivity (EC), total dissolved solids (TDS) and temperature with a single probe. The HI9813-61 features the Hanna Instruments CAL Check that will allow the user to know when the probe needs to be calibrated or replaced. The meter operation is simplified with dedicated buttons for measurement modes to be displayed on the LCD and knobs for single point calibration of pH and EC.
The HI9813-61 has a variable EC to TDS conversion factor that automatically chages from 0.56 to 0.78 ppm = 1 µS/cm based on the actual EC reading. This range is suitable for agricultural, greenhouse and hydroponic applications. The temperature correction coefficient (β) is fixed at 2%/℃.
- 3 in 1 probe with pH, EC/TDS and temperature sensors.
- Amplified pH electrode for immunity to electrical noise including from ballasts and pumps.
- CAL Check™
HANNA Portable PH/EC/TDS/Temperature Meter with CAL Check™ HI9813-61
SKU HI9813-6 Name Portable pH/EC/TDS/Temperature Meter with CAL Check™ – HI9813-6 pH Range 0.0 to 14.0 pH pH Resolution 0.01 pH pH Accuracy ±0.1 pH pH Calibration manual, 1-point through offset trimmer EC Range 0.00 to 4.00 mS/cm EC Resolution 0.01 mS/cm EC Accuracy ±2% F.S. EC Calibration manual, 1-point through slope trimmer TDS Range 0 to 1999 ppm (mg/L) TDS Resolution 1 ppm (mg/L) TDS Accuracy ±2% F.S. TDS Calibration manual, 1-point through slope trimmer EC/TDS Temperature Compensation automatic from 0 to 50°C (32 to 122°F) Temperature Correction Coefficient β=2%/°C typical EC to TDS Conversion Factor variable based on reading from 0.56 to 0.72 according to the TDS 442 curve for natural water Temperature Range 0.0 to 60.0°C / 32.0 to 140.0°F Temperature Resolution 0.1°C Temperature Accuracy ±0.5°C /±1°F Multi-parameter Probe HI 1285-6 combination, amplified pH/EC/TDS/temperature probe with Cal-Check feature, built-in temperature sensor, 8-pin DIN connector and 1 m (3.3 in.) cable Battery Type/Life 9V / approximately 150 hours of continuous use Environment 0 to 50°C (32 to 122°F); RH max 100% Dimensions 145 x 80 x 36 mm (5.7 x 3.1 x 1.4”) Weight 230 g (8.1 oz)
