YSI Pro Series DO Sensors Sensor:2002 Galvanic DO Sensor 2 pcs (3200043587) — replaceable

2 pcs (3200043587) — replaceable junction caps

Easily replaced 9 volt battery

01 NTU or ±1% of measurement

Unlike the standard field cable

YSI Pro Series DO Sensors Sensor:2002 Galvanic DO Sensor 2 pcs (3200043587) — replaceableUser replaceable dissolved oxygen sensors for the YSI Pro Series and ProQuatro handhelds. 2002 Galvanic DO Sensor no warm up required, start sampling immediately 2003 Polarographic DO Sensor longer sensor life, lower overall cost of ownership (requires brief warm up) 2003B Polarographic DO Sensor with 2. 0 mil PE Blue membrane kit Compatible with: ProQuatro, Pro20, Pro20i, Pro1020, Pro2030 instruments.