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
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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
Usually ships in 3-5 days
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
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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

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