Lutron DO-5510 is a Dissolved Oxygen Meter with RS-232 interface.
Accessories Included:
Oxygen probe( OXPB-11 ) ............................................. 1 PC.
Spare Probe head with Diaphragm set OXHD-04 ........ 2 PCs.
Probe-filling Electrolyte OXEL-03 ................................. 1 PC.