Specification of

The HI9813-6 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. A variable TDS conversion factor ensures that your results are right the first time.

3 in 1 probe with pH, EC, TDS & temperature sensors.
CAL Check™ ensures the accuracy of the meter.
Great for hydroponics, aquariums, pools, & ponds.

eatures at-a-glance

Water Resistant

CAL Check™

Variable EC to TDS conversion factor

Factor automatically adjusts from 0.56 to 0.78 based on actual EC readings
Factor based on 442 curve for natural water

Automatic Temperature Compensation

All readings are compensated for variations in temperature

Low Battery Indicator

Specifications

pH Range	0.0 to 14.0 pH
pH Resolution	0.1 pH
pH Accuracy	±0.1 pH
pH Calibration	manual, one point
Conductivity Range	0.00 to 4.00 mS/cm
Conductivity Resolution	0.01 mS/cm
Conductivity Accuracy	±2% F.S.
TDS Range	0 to 1999 ppm (mg/L)
TDS Resolution	1 ppm (mg/L)
TDS Accuracy	±2% F.S.
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
Temperature Compensation	automatic from 0 to 50°C (32 to 122°F) with β=2%/°C typical
EC/TDS Calibration	manual one-point
TDS Conversion Factor	Variable based on reading from 0.56 to 0.72 according to the TDS 442 curve for natural water
Electrode/Probe	HI1285-5 polypropylene body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1m 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)
Ordering Information	HI9813-6 is supplied with HI1285-6 pH/EC/TDS/°C probe with Cal-CheckTM, HI70007 pH 7.01 buffer solution sachet (1), HI70442 1500 ppm calibration solution sachet (1), HI70031 1413 µS/cm calibration solution sachet (1), HI700661 electrode cleaning solution sachets (2), HI50021 calibration check solution sachets (2), 9V battery, instructions and rugged carrying case.