Perfectly suited for the natural world, these optical dissolved oxygen meters combine durable water-proof construction with a user-friendly interface and the flexibility of using existing probes or upgrading to the next generation. Because there is no need to stir to get an accurate reading, the probe technology is ideal for low-agitation applications such as deep-water profiling. Meter features an expansive memory with storage space for over 100,000 datasets, reducing dependence on proximity to a computer—included flash drive lets you stay out in the field even longer. KorDSS data acquisition and management software simplifies analysis.

Interchangeable digital "smart" probes store calibration data for a year, saving you time and calibration solution costs—no need to recalibrate if connected to different meters. Convenient cable management kits are included with probes featuring cable lengths from 13-ft (4-m) to 100-ft (30-m).