YSI Pro1020™ Dual ISE/DO Meter

Combines Dissolved Oxygen with Any ISE

Simple-to-use handheld meter with user-selectable cable lengths and one-button calibration.
Specifications: Select either the long lasting, tried-and-true, classic polarographic DO sensor or the “instant on” galvanic DO sensor--each with screw on cap membranes. Automatic buffer recognition. Battery level is constantly shown on the backlit display. Keypad is also backlit for low-light conditions. IP-67 waterproof rating even without the battery lid. Field use is no problem with the rubber over-molded case. User-friendly graphic display with detailed messages and instructions means you won’t have to reread a huge instruction manual.