YSI Professional Plus

Handheld Multiparameter Water Quality Meter

YSI Professional Plus - Handheld Multiparameter Water Quality Meter

YSI’s Professional Plus handheld multiparameter water quality instrument provides advanced features, low cost of ownership, and extreme flexibility through its use of interchangeable cables and probes. Options are available for DO, pH, conductivity, ORP, Ammonium, Chloride, and Nitrates. Cables are available for various sensor combinations in lengths ranging from 1 to 100 meters. The Quattro cable allows up to four probes (5 parameters plus barometric pressure) to be monitored simultaneously. Cables can be swapped within seconds allowing the Professional Plus to make an easy transition between the field and the lab.

The YSI Professional Plus is the recommended replacement for the 556 MPS multiparameter meter. It can also be configured to replace the Model 63 pH and conductivity meter, or any of YSI’s classic handheld line, while providing the increased versatility of all the other available probe and cable options.

Other models in the Professional series line from YSI are also available including The Pro2030 for DO and Conductivity, the Pro20 for DO, and the ProODO optical DO meter.

Every Professinal Plus configuration measures temperature (built into every cable) and barometric pressure (built into the instrument). Three types of DO probes are available, galvanic, polarographic, and a self stirring BOD probe that is excellent for lab use. Conductivity probes can also derive resistivity, salinity, specific conductance, and total dissolved solids. The pH probes are very accurate with a resolution of .01 and the ability to perform up to a 6 point calibration. ORP, pH, Ammonium, Chloride, and Nitrate probes can be installed in any cable with an ISE port. A combination pH/ORP probe that uses only 1 ISE port is also available.

Both the galvanic and polarographic DO sensors from YSI feature the same range, accuracy, and resolution. When choosing between the two the deciding factor is warm up time vs sensor longetivity. Galvanic sensors require no warm up time. Polarographic sensors typically require warming up for 5 to 15 minutes, but have a longer sensor life.

The Professional Plus features a large, backlit, graphical LCD display with an integrated help system and multiple languages. Datalogging is built in with enough memory for 2,000 datasets, GLP event logging, and both interval and event based logging capabilities. The included Data Manager software is easy to use and allows the user to manage instruments and data, perform real time studies, and produce graphs. The Professional Plus helps to make your job easier with additional features like auto buffer recognition, auto stabilization, re calibration prompts, and an operating time of up to 80 hours with just 2 C alkaline batteries.

Rugged, easy to use, and reliable, the Professional Plus floats in water and is rated IP-67 even without its battery cover. It is covered by a 3 year warranty on the instrument, and 2 years on cables and probes. Military spec connectors, a rubber overmolded case, a scratch resistant display, and extensive in house drop testing, ensures field durability. The Professional Plus is well suited for the most demanding jobs and will provide many years of service.

Professional Plus Features

  • Interchangeable cables and probes provide versatility, minimize downtime, and reduce costs
  • A variety of probe and cable combinations area available
    DO, pH, ORP, Conductivity, Ammonium, Chloride, and Nitrates
  • Temperature and barometric pressure measurements included with every setup
  • Resistivity, salinity, specific conductance, and total dissolved solids derived from conductivity
  • Both the display and keypad are backlit*
  • On screen help system*
  • Software and communications saddle included*
  • Auto buffer recognition, 6 point pH calibration*
  • User upgradeable firmware
  • Single event or interval logging
  • 2,000 data-set memory
  • Software upgradable by USB
  • Durable probes, military spec connectors*
  • Durable enclosure, IP67 rated even without battery cover*
  • 3 year instrument warranty, 2 year cable warranty*

* Only available on handhelds from YSI

What to Order

The Professional Plus can be ordered as a complete kit below which includes the instrument, cable, probes, and a carrying case or lab dock. Alternatively, all the components can be ordered individually to form a custom configuration. Additional cables and probes can be ordered for use with any Professional Plus.

A custom Professional Plus configuration would consist of the instrument, a cable, and probes for that cable (if they are not included with the cable), all purchased seperately. Multiple cables and sensors can be ordered allowing the Professional Plus to be quickly reconfigured in the field for multiple tasks.

Cables are available below in different lengths and with different ports. All cables include a temperature probe, and some come with sensors included. Cables over 1 meter in length come with a cable management kit. Notes are provided to describe what probes are compatible and need to be purchased seperately. Probes, along with their cable compatibility, are also listed.

Calibration solutions and accessories like flow cells, carrying cases, replacement DO membrane kits, and cable weights are also available.

YSI Professional Plus Complete Kits

Call to Order
1-888-234-5678

Part No. Description Price
603179 Professional Plus Field Kit1
4 meter cable with polarographic DO probe		 $1,595.00 $1,515.25
603178 Professional Plus Field Kit1
4 meter cable with galvanic DO probe		 $1,595.00 $1,515.25
603188 Professional Plus Field Kit1
4 meter cable with cond and pH probe		 $1,775.00 $1,686.25
603189 Professional Plus Field Kit1
10 meter cable with cond and pH probe		 $1,875.00 $1,781.25
603181 Professional Plus Field Kit1
4 meter cable with cond and galvanic DO probe		 $1,950.00 $1,852.50
603180 Professional Plus Field Kit1
4 meter cable with cond and polarographic DO probe		 $1,950.00 $1,852.50
603184 Professional Plus Field Kit1
4 meter cable wth polarographic DO and pH probe		 $2,045.00 $1,942.75
603185 Professional Plus Field Kit1
4 meter cable with galvanic DO and pH probe		 $2,045.00 $1,942.75
603182 Professional Plus Field Kit1
10 meter cable with cond and polarographic DO probe		 $2,050.00 $1,947.50
603183 Professional Plus Field Kit1
10 meter cable with cond and galvanic DO probe		 $2,050.00 $1,947.50
603186 Professional Plus Field Kit1
10 meter cable with polarographic DO and pH probe		 $2,150.00 $2,042.50
603187 Professional Plus Field Kit1
10 meter cable with galvanic DO and pH probe		 $2,150.00 $2,042.50
603191 Professional Plus Field Kit1
4 meter Quatro cable with cond, galvanic DO, and pH probe		 $2,850.00 $2,707.50
603190 Professional Plus Field Kit1
4 meter Quatro cable with cond, polarographic DO, and pH probe		 $2,875.00 $2,731.25
603223 Professional Plus Field Kit1
4 meter Quatro cable with cond, polarographic DO, and pH/ORP probe		 $3,050.00 $2,897.50
603224 Professional Plus Field Kit1
4 meter Quatro cable with cond, galvanic DO, and pH/ORP probe		 $3,050.00 $2,897.50
603165 Professional Plus Lab Kit2
ProBOD self stirring BOD probe		 $1,875.00 $1,781.25
603166 Professional Plus Lab Kit2
ProBOD self stirring BOD probe and 1 meter lab cable with pH probe		 $2,050.00 $1,947.50
603167 Professional Plus Field and Lab Kit3
ProBOD self stirring BOD probe and 4 meter field cable with DO probe		 $2,290.00 $2,175.50
  • 1 Includes: Professional Plus instrument, indicated cables and probes,ProComm II communications saddle, USB cable, Data Manager software. 2 C alkaline batteries, user manual, and a soft sided carrying case
  • 2 Includes: Professional Plus instrument, indicated cables and probes,ProComm II communications saddle, USB cable, Data Manager software. 2 C alkaline batteries, user manual, lab dock, and a US power supply/adapter
  • 2 Includes: Professional Plus instrument, indicated cables and probes,ProComm II communications saddle, USB cable, Data Manager software. 2 C alkaline batteries, user manual, lab dock, soft sided carrying case, and a US power supply/adapter

YSI Professional Plus Instrument Only

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Part No. Description Price
6050000 Professional Plus1 instrument only2 $1,095.00 $1,040.25
  • 1 Includes: Professional Plus instrument, ProComm II communications saddle, USB cable, Data Manager software. 2 C alkaline batteries, and a user manual
  • 2 Requires cable with probes

YSI Professional Plus Cable Assemblies

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Part No. Description Price
60510-1 Cable for Professional Plus, 1 meter
1 ISE2 port3/temp		 $245.00 $232.75
60510-4 Cable for Professional Plus4, 4 meter
1 ISE2 port3/temp		 $250.00 $237.50
60510-10 Cable for Professional Plus4, 10 meter
1 ISE2 port3/temp		 $295.00 $280.25
60510-20 Cable for Professional Plus4, 20 meter
1 ISE2 port3/temp		 $350.00 $332.50
60510-30 Cable for Professional Plus4, 30 meter
1 ISE2 port3/temp		 $445.00 $422.75
60520-1 Cable for Professional Plus, 1 meter
DO port5/temp		 $245.00 $232.75
60520-4 Cable for Professional Plus4, 4 meter
DO port5/temp		 $250.00 $237.50
60520-10 Cable for Professional Plus4, 10 meter
DO port5/temp		 $295.00 $280.25
60520-20 Cable for Professional Plus4, 20 meter
DO port5/temp		 $350.00 $332.50
60520-30 Cable for Professional Plus4, 30 meter
DO port5/temp		 $445.00 $422.75
60520-100 Cable for Professional Plus4, 100 meter
DO port5/temp		 $695.00 $660.25
60530-1 Cable for Professional Plus, 1 meter
cond6/temp probe included		 $300.00 $285.00
60530-4 Cable for Professional Plus4, 4 meter
cond6/temp probe included		 $305.00 $289.75
60530-10 Cable for Professional Plus4, 10 meter
cond6/temp probe included		 $360.00 $342.00
60530-20 Cable for Professional Plus4, 20 meter
cond6/temp probe included		 $405.00 $384.75
60530-30 Cable for Professional Plus4, 30 meter
cond6/temp probe included		 $510.00 $484.50
6051010-1 Cable for Professional Plus, 1 meter
2 ISE2 ports78/temp		 $540.00 $513.00
6051010-4 Cable for Professional Plus4, 4 meter
2 ISE2 ports78/temp		 $550.00 $522.50
6051010-10 Cable for Professional Plus4, 10 meter
2 ISE2 ports78/temp		 $595.00 $565.25
6051010-20 Cable for Professional Plus4, 20 meter
2 ISE2 ports78/temp		 $695.00 $660.25
6051010-30 Cable for Professional Plus4, 30 meter
2 ISE2 ports78/temp		 $795.00 $755.25
6051020-1 Cable for Professional Plus, 1 meter
1 ISE2 port3/DO port5/temp		 $535.00 $508.25
6051020-4 Cable for Professional Plus4, 4 meter
1 ISE2 port3/DO port5/temp		 $550.00 $522.50
6051020-10 Cable for Professional Plus4, 10 meter
1 ISE2 port3/DO port5/temp		 $595.00 $565.25
6051020-20 Cable for Professional Plus4, 20 meter
1 ISE2 port3/DO port5/temp		 $695.00 $660.25
6051020-30 Cable for Professional Plus4, 30 meter
1 ISE2 port3/DO port5/temp		 $810.00 $769.50
6051030-1 Cable for Professional Plus, 1 meter
1 ISE2 port3/cond6/temp		 $435.00 $413.25
6051030-4 Cable for Professional Plus4, 4 meter
1 ISE2 port3/cond6/temp		 $440.00 $418.00
6051030-10 Cable for Professional Plus4, 10 meter
1 ISE2 port3/cond6/temp		 $490.00 $465.50
6051030-20 Cable for Professional Plus4, 20 meter
1 ISE2 port3/cond6/temp		 $540.00 $513.00
6051030-30 Cable for Professional Plus4, 30 meter
1 ISE2 port3/cond6/temp		 $645.00 $612.75
6052030-1 Cable for Professional Plus, 1 meter
DO port5/cond6/temp		 $610.00 $579.50
6052030-4 Cable for Professional Plus4, 4 meter
DO port5/cond6/temp		 $615.00 $584.25
6052030-10 Cable for Professional Plus4, 10 meter
DO port5/cond6/temp		 $675.00 $641.25
6052030-20 Cable for Professional Plus4, 20 meter
DO port5/cond6/temp		 $715.00 $679.25
6052030-30 Cable for Professional Plus4, 30 meter
DO port5/cond6/temp		 $820.00 $779.00
605790-1 Quatro cable for Professional Plus, 1 meter
2 ISE2 ports78/DO port5/cond6/temp		 $1,295.00 $1,230.25
605790-4 Quatro cable for Professional Plus4, 4 meter
2 ISE2 ports78/DO port5/cond6/temp		 $1,325.00 $1,258.75
605790-10 Quatro cable for Professional Plus4, 10 meter
2 ISE2 ports78/DO port5/cond6/temp		 $1,390.00 $1,320.50
605790-20 Quatro cable for Professional Plus4, 20 meter
2 ISE2 ports78/DO port5/cond6/temp		 $1,495.00 $1,420.25
605790-30 Quatro cable for Professional Plus4, 30 meter
2 ISE2 ports78/DO port5/cond6/temp		 $1,625.00 $1,543.75
605107 Cable for Professional Plus, 1 meter
pH/temp probe1 included, lab grade		 $175.00 $166.25
605177 Cable for Professional Plus, 4 meter
pH/temp probe1 included, lab grade		 $195.00 $185.25
605108 Cable for Professional Plus, 1 meter
ORP/temp probe1 included, lab grade		 $197.00 $187.15
605178 Cable for Professional Plus, 4 meter
ORP/temp probe1 included, lab grade		 $235.00 $223.25
605109 Cable for Professional Plus, 1 meter
pH/ORP/temp probe1 included, lab grade		 $295.00 $280.25
605179 Cable for Professional Plus, 4 meter
pH/ORP/temp probe1 included, lab grade		 $315.00 $299.25
605780 Cable for Professional Plus, 1 meter
ProBOD self stirring BOD probe included, 115 VAC		 $695.00 $660.25
  • 1 Single junction combination electrode
  • 2 ISE probes (pH, ORP, pH/ORP, Ammonium, Nitrate, or Chloride) are interchangeable and can be swapped out at any time
  • 3 Uses 1 ISE probe, purchased seperately
  • 4 Includes cable management kit
  • 5 uses 1 DO probe, either galvanic or polarographic, purchased seperately
  • 6 Conductivity probes are included and built into the cables
  • 7 Uses 2 ISE probes, purchased seperately
  • 8 Not recommended for use with the pH/ORP combination probe, only pH would be reported

YSI Professional Plus Probes

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Part No. Description Price
605202 DO probe15 for Professional Plus, galvanic $170.00 $161.50
605203 DO probe16 for Professional Plus, Polarographic $170.00 $161.50
605101 pH probe2 for Professional Plus $165.00 $156.75
605102 ORP probe2 for Professional Plus $195.00 $185.25
605103 pH/ORP probe23 for Professional Plus $290.00 $275.50
605104 Ammonium probe24 for Professional Plus $335.00 $318.25
605105 Chloride probe24 for Professional Plus $335.00 $318.25
605106 Nitrate probe24 for Professional Plus $335.00 $318.25
  • 1 Requires cable with available DO port
  • 2 Requires cable with available ISE port
  • 3 Not recommended for use with 2 port ISE cables, only pH would be reported
  • 4 For use in freshwater only
  • 5 Includes: DO probe, p/n 605913 cap membrane kit, installation tool, and a user manual
  • 6 Includes: DO probe, p/n 605306 cap membrane kit, installation tool, and a user manual

YSI Professional Plus Replacement DO Probe Membranes

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Part No. Description Price
605913 Replacement membranes1 for Professional Plus galvanic probe
Yellow cap 1.25 Mil Polyethylene		 $57.00 $54.15
605912 Replacement membranes1 for Professional Plus galvanic probe
Black cap 1.00 Mil Teflon		 $57.00 $54.15
605914 Replacement membranes1 for Professional Plus galvanic probe
Blue cap 2.00 Mil Polyethylene		 $57.00 $54.15
605306 Replacement membranes1 for Professional Plus polarographic probe
Yellow cap 1.25 Mil Polyethylene		 $54.00 $51.30
059880 Replacement membranes1 for Professional Plus polarographic probe
Black cap 1.00 Mil Teflon		 $54.00 $51.30
605307 Replacement membranes1 for Professional Plus polarographic probe
Blue cap 2.00 Mil Polyethylene		 $57.00 $54.15
  • 1 Includes: 6 screw on cap membranes, sanding disk, electrolyte solution, and instructions

YSI Professional Plus Calibration Solutions

Our entire line of calibration solutions are available in the field supplies section

Call to Order
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Part No. Description Price
PH-COMBO-PK EQUIPCO pH solution for Professional Plus
6 individual 500 mL bottles, 2 each of pH 4, 7, and 10		 $60.00 $57.00
603824 YSI pH solution for Professional Plus
6 individual 1 pint (~473 mL) bottles, 2 each of pH 4, 7, and 10		 $79.00
003821 YSI pH solution for Professional Plus
6 individual 1 pint (~473 mL) bottles,pH 4		 $79.00
003822 YSI pH solution for Professional Plus
6 individual 1 pint (~473 mL) bottles,pH 7		 $79.00
003823 YSI pH solution for Professional Plus
6 individual 1 pint (~473 mL) bottles,pH 10		 $79.00
COND-1K-500ML EQUIPCO conductivity solution for Professional Plus
500 mL bottle, 1000 µS		 $16.00 $15.20
COND-58K-500ML EQUIPCO conductivity solution for Professional Plus
500 mL bottle, 58700 µS		 $16.00 $15.20
065270 YSI conductivity solution for Professional Plus
1 quart (~946 mL), 1000 µS		 $68.00
065272 YSI conductivity solution for Professional Plus
1 quart (~946 mL), 10000 µS		 $68.00
065274 YSI conductivity solution for Professional Plus
1 quart (~946 mL), 100000 µS		 $68.00
060907 YSI conductivity solution for Professional Plus
8 individual 1 pint (~473 mL) bottles, 1000 µS		 $118.00
060911 YSI conductivity solution for Professional Plus
8 individual 1 pint (~473 mL) bottles, 10000 µS		 $118.00
060660 YSI conductivity solution for Professional Plus
8 individual 1 pint (~473 mL) bottles, 50000 µS		 $118.00
ORP-500ML EQUIPCO ORP solution for Professional Plus
500 mL bottle, Zobell solution		 $95.00 $90.25
061320 YSI ORP solution for Professional Plus
125 mL bottle, Zobell solution		 $29.00
005580 YSI confidence solution for Professional Plus
6 individual 1 pint (~473 mL) bottles		 $98.00
003841 YSI Ammonium solution for Professional Plus
500 mL bottle, 1 mg/l		 $80.00
003842 YSI Ammonium solution for Professional Plus
500 mL bottle, 10 mg/l		 $80.00
003843 YSI Ammonium solution for Professional Plus
500 mL bottle, 100 mg/l		 $80.00
003885 YSI Nitrate solution for Professional Plus
500 mL bottle, 1 mg/l		 $80.00
003886 YSI Nitrate solution for Professional Plus
500 mL bottle, 10 mg/l		 $80.00
003887 YSI Nitrate solution for Professional Plus
500 mL bottle, 100 mg/l		 $80.00

YSI Professional Plus Accessories

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1-888-234-5678

Part No. Description Price
603059 Flow cell for Professional plus, 11 or 2 port, standard $320.00 $304.00
603076 Flow cell for Professional plus, 11 or 2 port, extended length $345.00 $327.75
603077 Flow cell for Professional plus with 1 port adapter, 1 or 2 port, standard $360.00 $342.00
606850 Flow cell for Professional plus with Quatro cables $370.00 $351.50
603078 Flow cell 1 port adapter for Professional Plus $95.00 $90.25
603056 Flow cell mounting spike for Professional Plus $29.00 $27.55
603075 Carrying case for Professional Plus, soft sided $125.00 $118.75
603074 Carrying case for Professional Plus, hard sided $260.00 $247.00
603070 Shoulder strap for Professional Plus $27.00 $25.65
603069 Belt clip for Professional Plus $27.00 $25.65
063517 Ultra clamp2 for Professional Plus $25.00 $23.75
063507 Tripod3 for Professional Plus $28.00 $26.60
626444 Lab dock4 for Professional Plus $45.00 $42.75
605170 Electrode stand5 for professional Plus $95.00 $90.25
625120 BOD analyst pro software for Professional Plus $550.00 $522.50
605978 Cable weight for Professional Plus, 4.9 oz $25.00 $23.75
063019 Cable weight for Professional Plus, 3″, 24 oz $153.00 $145.35
063020 Cable weight for Professional Plus, 6″, 51 oz $184.00 $174.80
  • 1 Adapter p/n 603078 is required for use with 1 port cables
  • 2 Allows attaching the professional plus to a boat, desk, etc...
  • 3 Allows the professional plus to stand on any flat surface
  • 4 Instrument can be stored on dock with or without the communications saddle
  • 5 For use with lab grade pH and/or ORP probes only

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