Dust and waterproof housing (protection class IP 66 / IP 67). With large display for excellent readability even under bad lighting conditions. Completely silicone sealed 6-button keypad with response of real buttons. Up to 2500 h continuous operation with one battery set. Automatic AutoRead function for reproduceable measuring results. With built-in calibration timer for always correct measurement. Items supplied in set (example): Pocket conductivity meter 3110, conductivity cell TetraCon® or KLE, stand, beaker, short instruction manual, standard solution 1413 µS / cm, CD-ROM, batteries in field case. Dust and waterproof housing (protection class IP 66 / IP 67). With large display for excellent readability even under bad lighting conditions. Completely silicone sealed 6-button keypad with response of real buttons. Up to 2500 h continuous operation with one battery set. Automatic AutoRead function for reproduceable measuring results. With built-in calibration timer for always correct measurement. Items supplied in set (example): Pocket conductivity meter 3110, conductivity cell TetraCon® or KLE, stand, beaker, short instruction manual, standard solution 1413 µS / cm, CD-ROM, batteries in field case.