Tune-Up 556

YSI 556 Tune-Up Service

YSI 556 Tune-Up Service


Ensure the quality of your data by sending in your YSI 556 multi-parameter water quality meter for Fondriest Environmental's Tune-Up Service.


  • Tune-up rate for the 556 multi-parameter water quality meter
  • Meters are returned with a Calibration Report to confirm that all parameters meet specifications
  • Fondriest Environmental is a factory-authorized YSI Service and Repair Center
More Views
Your Price
Usually ships in 1-2 weeks

Shipping Information
Return Policy
Why Buy From Fondriest?


Quality data can be directly correlated to the condition of your monitoring equipment. Instrument check-up, characterization, and certification by a factory-authorized service center are recommended on a regular basis to help ensure data accuracy and maximize the instrument’s usable life.


Fondriest Environmental offers excellent turnaround times and low service costs on YSI 556 multi-parameter meters. Tune-Up Service covers all repair labor in addition to:


- Seal Inspection & Cleaning

- Cable Inspection & Testing

- Sensor Reconditioning & Calibration

- Circuit Board Performance & Upgrade


Upon receipt of the instrument, repair technicians will perform a free evaluation and send a detailed evaluation report and price quote via email to the point of contact.


Repairs are based on customer feedback and are performed only after approval is received. All repaired instruments are returned with a Calibration Report to confirm that system parameters meet factory specifications.


Call our Service & Repair Department at 888.426.2151 or email customercare@fondriest.com for more information.

What's Included:
  • Seals are cleaned of any contamination that may cause leakage
  • Damaged or missing o-rings are replaced
  • The cable is subject to a vigorous flex test to check for shorts
  • Connector and ports are cleaned of any moisture and corrosion
  • Sensors are reconditioned and calibrated so they are ready for use
  • New DO membranes are installed with fresh electrolyte solution
  • Circuit board performance is verified using a resistor box
  • Software is upgraded to the latest version
  • Calibration Report confirms that all parameters meet specifications
Image Part # Product Description Price Stock Order
YSI 556 Tune-Up Service Tune-Up 556 Tune-up YSI 556 water quality meter, includes all repair labor
Usually ships in 1-2 weeks
Image Part # Product Description Price Stock Order
YSI 550A/556/650 Battery Cover Assembly 116505 Battery cover assembly, 550A/556/650 (w/gasket & screws)
In Stock
YSI 5511 Maintenance Kit 005511 5511 maintenance kit, 556
In Stock
YSI 5906 DO Cap Membrane Kit 059880 5906 Teflon black 1.0 mil cap membrane kit, 85, 5905, 5010, 5239, 559 & 2003 polarographic sensors
In Stock
YSI 5908 DO Cap Membrane Kit 605306 5908 PE yellow 1.25 mil cap membrane kit, 550A, DO200, 559 & 2003 polarographic sensors
In Stock
YSI 5909 DO Cap Membrane Kit 605307 5909 PE blue 2.0 mil cap membrane kit, 559 & 2003 polarographic sensors
In Stock
YSI 5238 Probe Reconditioning Kit 052380 5238 probe reconditioning kit, for use with 5239, 85, 559, 2002 & 2003 DO probes
Usually ships in 3-5 days

Related Products

In The News

California sewer repairs offer window for coastal algae blooms monitoring

The number of coastal algae blooms has increased off California in the past 10 years and it may be due to the introduction of nutrient-rich urban wastewater. To see if a link exists, scientists in the state are taking advantage of month-long maintenance work on pipelines within the Orange County Sanitation District that will open a temporary discharge site one mile from shore. “It’s exceedingly rare that we have this opportunity,†said Dave Caron, professor of marine environmental biology at University of Southern California. “This long of a window hasn’t existed at any time in my memory.

Read More

YSI Repair Center Services

Quality data depends on monitoring equipment that is precisely and routinely calibrated and repaired. Fondriest’s factory-certified YSI Repair Center is staffed by trained technicians who have performed thousands of calibrations and maintenance procedures. Their experience guarantees proper and efficient work, ensuring the continued delivery of accurate, reliable data. Once a monitoring system is set up, equipment should be inspected, reconditioned, and calibrated periodically to ensure reliable results. Quality data can be directly correlated to the condition of monitoring equipment.

Read More

Sensor Array Stretching Across the North Atlantic Reveals Drivers of Global Currents

Most of us are aware that the oceans of the world play a tremendously important role in both the regulation of the global climate and the uptake of atmospheric carbon. However, one might be forgiven for being less aware of the amazing complexity of the meridional overturning circulation (MOC) of the world's oceans. Scientists around the world are still learning about these drivers of our global climate system. The AMOC, that portion of the MOC in the Atlantic, is critical to average climate worldwide. Characterized by fluctuations from north to south and back again, warmer waters move northward on the globe, allowing deeper, colder waters to circulate toward more central areas.

Read More