HQ14D portable conductivity meter and IntelliCal cond. probe, outdoor, 4-pin graphite, 5 m cable; measuring range: 0.01 µS/cm-200 mS/cm, accuracy: ±0,5 % (1 µS-200 mS); resistivity range: 2.5 ohm cm-49 ohm cm, accurracy: ±0,5 %; TDS range: 0.0-50.0 mg/l, accuracy: ±0,5 in the measuring range; salinity range: 0-42 (g/kg, 0/00, no until), resolution: up to 0,001 ppt, accuracy: ±0.1 mg /l at <8 mg/l; temperature range: -10.0 to 110 °C, resolution: 0.1 °C; automatic buffer recognition; with reminder function for calibration and standard check; status display of electrode; data memory for 500 readings; sample and operator identification; backlit graphic display with automatic economy mode, dateand time; power supply: 115 V/ 250 V, batteries; 4 AA or accus; protection class: IP 67 for instrument, outdoor electerodes and connections; dimensions/weight 95 x 197 x 36 mm (H x B x T), 323 g (without batteries).