YSI model 550A Dissolved Oxygen Meter.
PriceDiscontinued
SKU550A-12
The 550A dissolved oxygen instrument has been discontinued. YSI will continue to support existing 550A's through 2020. We recommend the Pro20i as a direct replacement. The Pro20 and ProSolo handheld instruments are also suitable replacements.
Features:
Do you have an old meter such as the 550A that you'd like to trade in for a discount on a new ProSolo ODO/T system? Check out the Pro Series Trade-In Promotion going on now (U.S. only).
Be the envy of your co-workers by winning a ProSolo ODO/T system! Enter to win a ProSolo optical DO system.
Please visit our extensive dissolved oxygen resource page to learn about all things DO and BOD related.
You can also download The Dissolved Oxygen Handbook - the definitive guide on all things DO.
Cap Membrane Kit 1.25 Mil PE (6 each), Polarographic, includes electrolyte (yellow cap)
DO Replaceable Probe
Carrying Case, Small Soft-sided (instrument & cable), Pre-cut foam/Nylon fabric (11.5 x 14.5 x 6)
Probe Reconditioning Kit (400 grit sanding discs and sanding tool)
$76.00
Portable Dissolved Oxygen and Temperature Sampling Handheld Meter
$710.00
$246.00
$115.50
Optical Dissolved Oxygen Digital Handheld Instrument. Meter Only.
Discontinued