The professional Plus was designed to be tough and smart in the lab or field. And extremely versatile. The Pro Plus accommodates any combination of YSI Pro
series cables, sensors, and accessories.

Want to measure DO in the field? Maybe pH/DO/Nitrate? Or perhaps you need it to be a lab instrument that measures BODs? Whatever you need, the Pro Plus
is your choice.

Features:

• Rugged, durable field cable with a 2-year warranty standard.
• Backlit display AND keypad for use in true low-light conditions.
• The file system allows for a 100 folder and site list structure to store and easily manage 2,000 data sets.
• Adjustable right or left-handed hand strap.
• Detailed on-screen Help function.
• Case is rubber over-molded to provide extra protection and prevent slipping; also allows for flat non-slip design on a table top and provides an IP-67 rating with or without the battery cover; 1-metre drop rated from all angles.
• MS (military-spec) connectors, rugged, waterproof, keyed, bayonet style quarter-turn lock.
• Multiple user-replaceable sensor options and a choice of galvanic or polarographic DO sensors.