Features: • Robust meter housing plus 100 % waterproof and easy-to-clean keypad. • Keys with tactile feedback for error-free operation. • Built-in calibration timer for reliable results. Specifications: • Conductivity 0.0 … 1000 mS/cm ± 0.5 % v. Mw. • Cell contants: fixed: 0.475 cm–1. 0.880 cm–1 calibratable: 0.450 … 0.500 cm–1, 0.800 … 0.880 cm–1 • Salinity 0.0 … 70.0 (according to IOT) • Temperature – 5.0 … 105.0 °C ± 0.1 °C • AutoRead: automatic • Tref 20 °C/25 °C • Temperaturecompensation: nLF • Power supply 4 x 1.5 V AA or 4 x 1.2 V NiMH rechargeable • Continuous operation up to 1000 hours