YSI DO Sensor

Q: Which meters does this sensor fit?

The YSI Pro20, Pro1020 and Pro2030 handhelds — the same sensor is listed in the options dropdown on each of those product pages.

Q: Will it fit an optical meter like the ODO200, ProSolo or ProDSS?

No — those meters use an optical sensor cap rather than a membrane sensor, so this part is not compatible with them.

Q: Galvanic or polarographic — what is the difference?

Galvanic reads immediately with no warm-up; polarographic needs a short warm-up but lasts longer and costs less to run over time.

Q: What range and accuracy will I get?

That is set by the meter, not the sensor — check the specification table on the Pro20, Pro1020 or Pro2030 page for the exact range, resolution and accuracy.

Q: Which membrane kit do I order with it?

5913 for the galvanic sensor; 5908, 5909 or 5906 for the polarographic sensor, depending on whether you want faster response or longer membrane life.

Q: How long is the warranty?

One year on the polarographic sensor and six months on the galvanic sensor.

Q: Is electrolyte included?

Yes — electrolyte solution is supplied for filling the screw-on membrane cap.

Replacement dissolved oxygen sensors for handheld DO meters.

$350.00 ex GST

Option

Clear

Categories: DO Meters, Multimeters, Water Quality Monitoring

Applications: Aquaponics, LSS, Pond, RAS, Water & Wastewater Treatment

Brand: YSI

Product Information

Key Features

Replacement membrane dissolved oxygen sensor for YSI Pro Series handhelds — supplied as either a galvanic or a polarographic sensor
Galvanic sensors start reading immediately with no warm-up period, which suits spot checks across several tanks
Polarographic sensors last longer and lower the total cost of ownership on a meter that is used every day
Screw-on membrane cap design makes membrane changes and recalibration quick, with electrolyte supplied
Membrane caps available in several thicknesses — 1.25 mil PE, 2.00 mil PE and 1.00 mil Teflon — to trade response speed against membrane life
Measuring range, resolution and accuracy are set by the meter the sensor is fitted to, not by the sensor — see the Pro20, Pro1020 or Pro2030 specifications
User replaceable in the field, so a damaged sensor does not take the meter out of service
Choosing your model: pick galvanic if the meter is used occasionally and you want a reading straight away, or polarographic if it runs daily and you want the longer service life and lower running cost. Then order the matching membrane kit — 5913 for galvanic, 5908/5909/5906 for polarographic.

Specifications

Specification	Galvanic DO sensor	Polarographic DO sensor
YSI part number	605202	605203
Sensor technology	Galvanic membrane cell — no warm-up required	Polarographic membrane cell — short warm-up, longer service life
Best suited to	Occasional spot checks across several tanks	Daily use on one system, where running cost matters
Matching membrane kit	5913 yellow cap, 1.25 mil PE (6 caps)	5908 yellow 1.25 mil PE, 5909 blue 2.00 mil PE or 5906 black 1.00 mil Teflon (6 caps)
Membrane fitting	Screw-on cap, electrolyte supplied	Screw-on cap, electrolyte supplied
Warranty	6 months	1 year
Fits	YSI Pro20, Pro1020 and Pro2030 handhelds	YSI Pro20, Pro1020 and Pro2030 handhelds
Measuring range, resolution and accuracy	Set by the meter, not the sensor — see the Pro20, Pro1020 or Pro2030 specification table	Set by the meter, not the sensor — see the Pro20, Pro1020 or Pro2030 specification table
Not compatible with	Optical meters — the ODO200, ProSolo and ProDSS use an optical sensor cap, not a membrane sensor	Optical meters — the ODO200, ProSolo and ProDSS use an optical sensor cap, not a membrane sensor

Frequently Asked Questions

Which meters does this sensor fit?

Will it fit an optical meter like the ODO200, ProSolo or ProDSS?

Galvanic or polarographic — what is the difference?

What range and accuracy will I get?

Which membrane kit do I order with it?

How long is the warranty?

Is electrolyte included?

Spare Parts & Consumables

YSI Membrane Kits
Price range: $125.00 through $135.00 ex GST Select options This product has multiple variants. The options may be chosen on the product page

YSI DO Sensor

Product Information

Key Features

Specifications

Frequently Asked Questions

Spare Parts & Consumables

YSI Membrane Kits

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