Lower riskMedical device recall · FDA · Published April 2, 2018
Bio-Rad PR4100 Microplate Reader: Power Supply Connector Incompatibility Risk
Bio-Rad recalls PR4100 Microplate Readers with specific serial numbers due to power supply connector incompatibility that could cause system damage if incorrectly connected.
The connector of the power supply was capable of fitting other components provided with the system. However, the voltage output of the reader power supply is incompatible with the other component and, if incorrectly connected, could result in irreparable damage to the system.
Take action
Contact the company
📍Recalling firmBio-Rad Laboratories Inc6565 185th Ave NE · Redmond, WA 98052-5039
“Bio-Rad PR4100 Microplate Reader: Power Supply Connector Incompatibility Risk.” GovInfoNow, updated August 21, 2026. https://govinfonow.com/recall/71562-bio-rad-pr4100-microplate-reader-power-supply-connector-incompatibility-risk. Based on FDA recall #Z-2541-2018 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-2541-2018%22&limit=1).
The Food and Drug Administration announced on April 2, 2018, that Bio-Rad Laboratories Inc. is recalling the PR4100 Microplate Reader US due to a power supply connector hazard. The agency stated the recall addresses potential irreparable damage to the system if components are incorrectly connected.
How to tell if you have it
Brand: Bio-Rad
Product: PR4100 Microplate Reader US
Catalog Number: 45591587
Units affected: 153
The hazard
The FDA said the connector of the power supply was capable of fitting other components provided with the system. However, the voltage output is incompatible with those other components, and incorrect connection could result in irreparable damage to the system.
Context
GovInfoNow's records show Bio-Rad Laboratories, Inc. has had 12 other recalls on record since June 8, 2018. Other recent recalls of similar products include Bio-Rad Platelia Toxo IgM Kit Recall (May 30, 2025) and Bio-Rad BioPlex 220: Incorrect Reagent May Cause False Test Results (Feb. 28, 2023).
How to tell if you have this one
Check if your PR4100 Microplate Reader has a serial number listed in the provided list (e.g., 140600072, 160900991, etc.). The product is a 96-well absorbance reader for laboratory use.
Brand
Bio-Rad
Category
Medical device
Based on the official FDA remedy
What to do — step by step
Check Serial Number
Verify your PR4100 Microplate Reader's serial number against the list provided in the recall notice.
Where it went and when
Where it was distributed
Distributed nationwide; the notice names 31 states.
Named in the notice
Covered by “nationwide”
Not listed
FDA distribution: “US Nationwide Distribution inn the states of : AL, AR, AZ, CA, CO, CT, FL, GA, HI, IL, IN, KS, LA, MA, MD, MI, MN, MO, MS, NC, NJ, NY, OR, PA, SC, TN, TX, VA, VT, WA, WI, and Puerto Rico.” States read from FDA’s own wording; “not listed” means the notice does not name it.
Named in the notice: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois, Indiana, Kansas, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, New Jersey, New York, North Carolina, Oregon, Pennsylvania, Puerto Rico, South Carolina, Tennessee, Texas, Vermont, Virginia, Washington, Wisconsin.
Recall timeline
FDA published this recall 4 months after the firm started it.
1Firm started the recall
2FDA classified it Class II
3Published in FDA’s Enforcement Report
Dates from the agency record only; steps without a date are left out.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Official source: FDA Recall #Z-2541-2018 (April 2, 2018) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-2541-2018 to see it in context.
Plain-language summary written by qwen3:4b on August 21, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.