Professional Plus (Pro Plus) Multiparameter Instrument

The Quatro cable attached to the Pro Plus allows you to utilize 4-ports to measure temperature/conductivity, DO, and any two ISEs among pH, ORP, ammonium, chloride, or nitrate creating an extremely powerful handheld multiparameter instrument.

Interested in a Pro Series Product? Check out the trade in program currently going on (U.S. only).

Please visit the Professional Plus Kits page for fully assembled systems.

The Pro Plus instrument meets the demands of true field work. The instrument is rated to IP-67 standards even without the battery cover on. Other tough features include a 3-year warranty, Mil-spec connectors, rubber overmolded case, and a 2-year cable warranty. In-house testing procedures also include 1-meter drop tests from all angles to ensure expected field-durability.

Tough, Field Durability Features Include:

Easy-to-install cable weights; can be daisy-chained for additional weight*
Rubber, over-molded IP-67 waterproof case (even without the battery cover)*
3-year instrument warranty
2-year cable warranty*
Rugged cables, sensors, and military-spec connectors*
Drop-tested 1 meter at all angles*
Scratch-resistant lens; viewable with polarized glasses
Instrument floats
Weighted, user-replaceable multi-sensor design
The instrument provides numerous benefits from the following features; 5,000 data-set memory, password protection, backlit display and keypad, graphic display with detailed Help functionality, re-cal prompts, user defined fields, detailed GLP, auto stable, Hold All Readings function, Data Manager software for the desktop, USB connection, auto-buffer recognition, and flexible folders and site lists for logging data.

Smart Features Include:

5,000 data set memory
Detailed on-screen Help function*
Free, Data Manager desktop software and ProComm II saddle*
Interval or single-event logging
100 folder & site list data structure*
Password protection
Detailed GLP data
USB connection also powers the instrument
6-point cal with auto-buffer recognition*
User-adjustable auto-stable with prompts*
User-upgradeable software via waterproof USB port
Recalibration prompts
Search function filters user-defined data information*
Backlit display AND keypad*
Cable management kit included with all cables from 4- to 30-meters*
Most Versatile
Connect any Professional Series cable (excludes ODO cables) and probe option to the instrument and use the convenient cable management kit to keep everything simple and organized. Cable options range from 1-, 4-, 10-, 20-, and 30-meter choices (up to 100-meters on DO only cables). Use lab or field probes and switch between the two quickly. The Pro Plus makes an ideal lab BOD instrument with the proven self-stirring BOD probe (EPA Approved). A convenient handstrap can be used on either side of the instrument. A complete family of accessories also increases the versatility of the Pro Plus. Choose among accessories including carrying cases, flow cells, cable weight, belt clip, tripod, and c-clamp.

Added Versatility Features Include:

Adjustable right- or left-handed hand strap*
Multiple user-replaceable sensor options and a choice of DO sensors*
Multiple parameter options and cable lengths
Lab-grade ISE sensors and BOD probe available to make a true lab/field instrument
Languages - English, Spanish, German, French, Italian, Norwegian, Portuguese, Japanese, Chinese (Simplified and Traditional)
Wide array of accessories are available from flow cells, to shoulder straps, to carrying cases
Free - Data Manager - Watch the Data Manager Demo Video
Data management can become a daunting task over time but with the Data Manager software this task is much simpler and efficient. Download data, configure instruments, and conduct real-time studies easily with Data Manager software. View data graphically or in tabular form and export data as needed to other programs. Data Manager software is a very powerful tool. So powerful in fact, that we give it to you at no charge when purchasing a Pro Plus. After all, it's all about the data!

When purchasing the Pro Plus you will receive the instrument, manual, batteries, communications saddle, USB cable, and Data Manager software. Cables and probes are ordered separately.

* feature or benefit only YSI offers on a handheld instrument.