This multi-parameter instrument tests for 4 of the most important factors in the growing environment. Calibration is performed at the touch of a button with memorized pH and EC buffers. Accuracy is ensured with Automatic Temperature Compensation and the advanced sensor which completely eliminates polarization and oxidation problems. Beta factor and TDS ratio are user-selectable as is the ability to read in °C or °F. The HI 991300 is supplied complete with probe and carrying case.
Range 0.00 to 14.00 pH; 0.00 to 20.00 mS/cm EC; 0.00 to 10.00 ppt TDS; 0.0 to 60.0°C or 32.0 to 140.0°F
Resolution 0.01 pH; 0.01 mS/cm EC; 0.01 ppt TDS; 0.1°C or 0.1°F
Accuracy (@20°C/68°F) ±0.01 pH; ±2% F.S. EC/TDS; ±0.5°C or ±1.0°F
Typical EMC Deviation ±0.03 pH; ±2% F.S. EC/TDS; ±0.5°C or ±1.0°F
EC/TDS Ratios Selectable from 0.45 to 1.00 (0.50 default); step is of 0.01 unit
pH Calibration Automatic 1 or 2 points with 2 sets of memorized standard buffers
EC/TDS Calibration Automatic 1 point at 6.44 ppt
Temp. Compensation Automatic from 0 to 60°C pH; Automatic from 0 to 60°C with a selectable b from 0.0 to 2.4% per °C EC/TDS
Probe (included) HI 1288 pH/EC/TDS probe with built-in temperature sensor, DIN connector and 1 m (3.3?) cable
Battery Type / Life 4 x 1.5V AAA / approximately 500 hours of continuous use
Environment 0 to 50°C (32 to 122 °F); RH 100%
Dimensions 143 x 80 x 38 mm (5.6 x 3.1 x 1.5?)
Weight 320g (11.3 oz.)
HI 991301 is supplied complete with pH/EC/TDS/T HI 1288 probe, with 1 m (3.3?) cable, batteries, rugged carrying case and instructions.