YSI Pro20 Field Kits, Includes: 10m cable with polarographic DO probe, Accuracy: +/-5mmHg (5 deg.C), 0 to 20mg/L, +/-2% of the reading, 20 to 50mg/L, +/-6% of the reading, +/-0.3 deg.C, Battery Life: 400 hr., Battery Type: 2 alkaline C-cell
YSI Pro20 Field Kits, Includes: 4m cable with galvanic DO probe, Accuracy: +/-5mmHg (5 deg.C), 0 to 20mg/L, +/-2% of the reading, 20 to 50mg/L, +/-6% of the reading, +/-0.3 deg.C, Battery Life: 400 hr., Battery Type: 2 alkaline C-cells
YSI Pro20 BOD Lab Kit, IP Rating: IP67, Languages: English, Spanish, French, and German, Power Consumption: Two alkaline C-cells, Accuracy: 0 to 20mg/L, 2% of the reading or 0.2mg/L, whichever is greater; 20 to 50mg/L, 6% of the reading, Ba