Bench-top Oxymeter-Thermometer measures dissolved oxygen, saturation index by polarographic type combined probes, temperature by Pt100 probes with SICRAM module. Datalogger which stores maximum, minimum, average value. RS232 C serial output or USB 2.0 for data download to a PC or printer from memory or in real time. Functions: REL, HOLD, auto power off which can be disabled, protection degree IP 66. Battery power supply or mains power supply by SWD10 (optional).