Technical Specification

Specification		HI98129
pH	Range	0.00 to 14.00 pH
	Resolution	0.01 pH
	Accuracy	±0.05 pH
Conductivity	Range	0 to 3999 uS/cm
	Resolution	1 uS/cm
	Accuracy	±2% F.S.
TDS	Range	0 to 2000 mg/L (ppm)
	Resolution	1 ppm (mg/L)
	Accuracy	±2% F.S.
Temperature	Range	0.0 to 60.0°C / 32.0 to 140.0°F
	Resolution	0.1°C / 0.1°F
	Accuracy	±0.5°C /±1°F
Additional Specification	EC/TDS Calibration	automatic, one point at 1413 µS/cm or 1382 ppm (mg/L)
	pH Calibration	automatic, one or two-point with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18)
	Temperature Compensation	pH: automatic; EC/TDS: automatic with ? adjustable from 0.0 to 2.4% / °C
	TDS Conversion Factor	0.45 to 1.00
	pH Electrode	HI73127 (replaceable; included)
	Environment	0 to 50°C (32 to 122°F); RH max 100%
	Battery Type / Life	1.5V (4) / approx. 100 hours of continuous use; auto-off after 8 minutes of non-use
	Dimensions / Weight	163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’) / 100 g (3.5 oz.)