Hanna Portable Waterproof pH/EC/TDS Low Range Meter - H1991300

The Hanna Instruments HI991300 is a rugged, portable, multiparameter meter designed for accurate water quality testing in environmental, field, industrial, and laboratory settings. It combines pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature measurements into a single handheld instrument—making it an ideal tool for environmental sampling, water analysis, and on-site monitoring of freshwater, aquaculture, wastewater, and process water. Specifications pH Range 0.00 to 14.00 pH pH Resolution 0.01 pH pH Accuracy ±0.01 pH pH Calibration automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) Conductivity Range 0 to 3999 µS/cm Conductivity Resolution 1 µS/cm Conductivity Accuracy ±2% F.S. TDS Range 0 to 2000 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 / 0.1°F Temperature Accuracy ±0.5°C /±1°F Temperature Compensation pH: automatic; EC/TDS: automatic with β adjustable from 0.0 to 2.4% / °C EC/TDS Calibration automatic, one-point at: 1382 ppm (CONV=0.5), 1500 ppm(CONV=0.7), 1413 µS/cm TDS Conversion Factor 0.45 to 1.00 Electrode/Probe HI1288 PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1m cable Battery Type/Life 1.5V (3) AAA / approximately 500 hours of continuous use; auto-off after 8 minutes of non-use Environment 0 to 50°C (32 to 122°F); RH max 100% Dimensions 150 x 80 x 36 mm (5.9 x 3.1 x 1.4’’) Weight 205 g (7.2 oz.) Ordering Information Each meter is supplied complete with HI 1288 probe, batteries, rugged carrying case and instructions. Warranty 2 years (probe 6 months)