YSI Pro Series DO Sensors Sensor:2002 Galvanic DO Sensor Complete your setup with:

Complete your setup with:

Our premium silicone tubing is specifically designed for environmental sampling applications

5V AA batteries (4) / approximately 360 hours of continuous use without backlight (50 hours with backlight) Environment 0 to 50°C (32 to 122°F)

so readings hold up in conditions that shut other instruments down

Easily replaced 9 volt battery

YSI Pro Series DO Sensors Sensor:2002 Galvanic DO Sensor Complete your setup with:User 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.