YSI® Model 55 Dissolved Oxygen Meter

The Model 55 is a complete system for dissolved oxygen (DO) measurements in a conveniently sized, hand-held Meter. The ergonomic housing is splashproof and the complete system floats in water.

Large LCD simultaneously displays temperature in °C and dissolved oxygen in mg/L or % air saturation. All readings are automatically temperature compensated and can also be compensated for barometric pressure and salinity. Meter includes probe, cable and AA batteries. 9.5"H x 3.5"W x 2.2"D. The polarographic probe can be serviced in the field and can be purchased with your choice of 12, 25 or 50'L cable. Optional Waterproof Carrying Case makes transport easy.
Please Specify Color for No. 9438: BL (black), GR (gray).