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YSI PRO20I INSTRUMENT, KITS, SENSORS, & ACCESSORIES

YSI Pro20i Dissolved Oxygen/Temperature Portable Dissolved Oxygen Meter for the Field Easy to use, rugged and reliable, the YSI Pro20i provides everything you need in a handheld instrument for the measurement of dissolved oxygen (DO). A true field instrument with IP-67 waterproof, rubber over molded case, military spec connectors and 1-meter drop tests ensure durability to provide years of sampling even in the harshest field conditions. With the Pro20i, accuracy is not compromised for ruggedness. The Pro20i can easily be calibrated for fast, accurate measurements you can trust.

Part Number
  • Integral (i.e. built-in) cable with 1- 4- 10-m field cable
  • User-replaceable DO sensors • One Touch Cal allows for easy DO calibrations within 3 seconds with the press of a button
  • Automatic barometric pressure compensation
  • Quick response times; T-95 response time in 8 seconds with standard membrane (fastest response time on the market)
  • Stores 50 data sets; no need to write down data
  • Large graphic, backlit display and glow in the dark keypad, visible in any lighting condition
  • Display is visible when wearing polarized sunglasses
  • A true field instrument with IP-67, impact-resistant, waterproof case. Waterproof with and without the battery cover.
  • Rubber over molded, slip-proof case provides extra durability
  • Multiple languages: English, Spanish, French, and German
  • Warranty: 3-year instrument, 2-year integral cable, 1-year polarographic sensors, 6-month galvanic sensor

Parameters: Dissolved Oxygen (DO%, DO% Local, ppm and mg/L) Temperature (°C, °F) Barometric Pressure (mmHg, inHg, mbar, psi, kPa)

Pro20i Part Number Description
Notes - Compatible With
YSIPro20i-1 P Kit Pro20i Dissolved Oxygen and Temperature Handheld with 1-meter integral (non-detachable cable) and 2003 Polarographic sensor kit
Includes 2003 DO kit.
YSIPro 20i-1 G Kit Pro20i Dissolved Oxygen and Temperature Handheld with 1-meter integral (non-detachable cable) and 2002 Galvanic sensor kit
Includes 2003 DO kit.
YSIPro20i-4 P kit Pro20i Dissolved Oxygen and Temperature Handheld with 4-meter integral (non-detachable cable) and 2003 Polarographic sensor kit
Includes 2003 DO kit.
YSIPro20i-4 G Kit Pro20i Dissolved Oxygen and Temperature Handheld with 4-meter integral (non-detachable cable) and 2002 Galvanic sensor kit
Includes 2003 DO kit.
YSIPro20i-10 P Kit Pro20i Dissolved Oxygen and Temperature Handheld with 10-meter integral (non-detachable cable) and 2003 Polarographic sensor kit
Includes 2003 DO kit.
YSiPro20i-10 G Kit Pro20i Dissolved Oxygen and Temperature Handheld with 10-meter integral (non-detachable cable) and 2002 Galvanic sensor kit
Includes 2003 DO kit.
Replacement Sensors
YSI2002 Galvanic DO Sensor
Professional Plus, Pro20, Pro20i, Pro2030, Pro1020
YSI2003 Polarographic DO Sensor
Professional Plus, Pro20, Pro20i, Pro2030, Pro1020
YSI2003B Polarographic 2003 DO Sensor with Blue, 2.0 PE membrane kit
Professional Plus, Pro20, Pro20i, Pro2030, Pro1020
Accessories
YSI626444 Pro Series Lab Dock
All Professional Series with or without Saddle
YSI3075 Carrying Case, Soft Sided
All Professional Series systems
YSI3074 Carrying Case, Hard Sided
All Professional Series systems and Legacy 556
YSI6262 Carrying Case, Soft Sided, Small ProSeries
YSI3070 Shoulder Strap
All Professional Series instruments
YSI3069 Belt Clip
All Professional Series instruments
YSI614 Ultra Clamp
All Professional Series instruments
YSI4654 Tripod Clamp
All Professional Series instruments
YSI5745 Maintenance Kit
All Professional Series probe assemblies
YIS038213 Brush, Tube Cleaner
All probes with conductivity cells
YISI601205 Grease, o-ring ( size is a 2cc tube)
YIS3062 Cable Management Kit
All probe/cables longer than 1 meter
YSI5978 Weight, Probe/Cable, 4.9 oz
All single port probe assemblies, Quatro and ProDSS cables
Membranes
YSI5908 Cap Membrane Kit 1.25 Mil PE (6 each), includes electrolyte (yellow cap)
MultiLab 4100, DO200, 550A, 556, Pro20, Pro20i, Pro2030, Pro1020, ProPlus Polarographic Probes
YSI5909 Cap Membrane Kit 2.00 Mil PE(6 each), includes electrolyte (blue cap)
DO200, 550A, 556, Pro20, Pro20i, Pro2030, Pro1020, ProPlus Polarographic Probes
YSI5913 Cap Membrane Kit 1.25 Mil PE (6 each), includes electrolyte (yellow cap)
Pro20, Pro20i, Pro2030, Pro1020, ProPlus Galvanic Probes
YSI5914 Cap Membrane Kit 2.00 Mil PE(6 each), includes electrolyte (blue cap)
Pro20, Pro20i, Pro2030, Pro1020, ProPlus Galvanic Probes