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Handheld Multiparameter Water Quality Meter | The YSI Pro Plus

Supplier: Air-Met Scientific

Designed to be tough, smart and versatile in the lab or field , the Pro Plus is your choice for measuring pH, DO, nitrate and conductivity.

Price Guide: POA


Do your job with confidence even in the harshest field conditions. The drop-tested Pro Plus was designed tough with military-spec connectors, a two-year warranty on all cables, weighted sensor guards, and a rubber over-moulded case with three-year warranty. Furthermore, the instrument is rated to IP-67 standards even without the battery cover on. Its interchangeable sensors and extra-durable cables nearly eliminate down time. And its low overall cost of ownership means you’re making a worthwhile investment for years to come.


The technology-smart YSI Pro Plus has all the built-in support you'll need for the lab or field. It provides multiple languages, detailed GLP data, onscreen Help to eliminate the need for a bulky manual, sensor diagnostics, up to six-point auto-buffer recognition, re-cal prompts, user-defined auto-stable function, and security passwords for extra protection. And much more.

More versatile

Connect any cable and probe option to the instrument and use the convenient cable management kit to keep everything simple and organized. Cable options range from 1-30-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. 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. 


  • Easy-to-install cable weights; can be daisy-chained for additional weight*
  • Rubber, over-moulded IP-67 waterproof case (even without the battery cover)*
  • Rugged cables, sensors, and military-spec connectors*
  • Drop-tested 1 meter at all angles*
  • Scratch-resistant lens; viewable with polarised glasses
  • Instrument floats
  • Weighted, user-replaceable multi-sensor design
  • 5000 data set memory
  • Detailed on-screen Help function*
  • Free, Data Manager desktop software and ProComm II saddle*
  • Interval or single-event logging
  • 100 folder and 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-metres*

Available at Air-Met Scientific for sale and rental today.