Manufacturer Eutech. Standard portable oxygen handheld meter, type CyberScan DO 110 with oxygen electrode (ECDOHANDYNEW), RS232 cable, DAS software, 1 membrane hood enclosure, 1 refillable electrolyt (60 ml) and suitcase set. Calibration (2 points). Suitable for different fish farming applications (tanks and ponds). Also useable for water- and waste water purification, recirculation systems, industrial process installations, laboratories and schools.