HACH HQ40d

* Power 4 AA Batteries; Battery life: > 200 hours * USB/ DC and AC/ DC power connection included * Languages ( selectable) English, French, German, Italian, Spanish, danish, Dutch, Polish, Portuguese, Turkish, Swedish, Czech, Russian * Display reading from one or two probes. Simultaneous reading from two probes. pH Probes: pH, mV, temperature. Conductivity Probes: Conductivity, TDS, salinity, resistivity, temperature correction, temperature. LDO Probes: dissolved oxygen, pressure, temperature. LBOD Probes: dissolved oxygen, pressure, temperature. * Data memory 500 results * Data storage GLP/ ISO compliant reading data stored with calibration details. Standard readings documented as events in log. Automatically store in " press to read" mode and interval measurement mode. Manually store in " continous read" mode. * Data Export Download via USB connection to PC or Flash stick. Automatically transfer entire data log or as readings are taken. * Temperature Correction off, automatic, and manual. * Compensation ( correction is parameter dependent) * Display Lock Function Continous measurement or " press to read" mode available with averaging function for LDO measurement * Automatic pH buffer Recognition Choose from 3 sets: -Color-coded: 4.01, 7.00, 10.01 pH -IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45 -DIN: 1.09, 4.65, 9.23 * Keyboard External PC keyboard via USB connection * Water Resistance meter casing: 1 meter submersion for 30 minutes ( IP67) * Dimensions 19.7 x 9.5 cm * Weight 335 g