YSI 559 Replacement DO Sensor Module
Replacement DO sensor module for YSI 550A and 556 dissolved oxygen meters
Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET
This product is an accessory for the following products:
The YSI 559 is a replaceable DO sensor for YSI 550A, 556, and 5200 dissolved oxygen meters. The 559 comes with a small allen wrench for the set screw. This sensor is easily replaced in the field in minutes.