Cleaning & Disinfecting Tips

 Cleaning and Disinfecting U.are.U® Fingerprint Readers 

To our customers:

As our community is working towards a solution for the current pandemic known as COVID-19 (Corona Virus) we wanted to give you some information on how to properly clean, disinfect and care for your fingerprint readers. These instructions come directly from the manufacturer and we cannot make any comments or representations about the effectiveness of any of these products in preventing infectious diseases of any kind, or any damages that the hardware may sustain. Please use at your own risk, all information is provided in good faith, however, we make no warranty or representation of any kind, express nor implied, regarding the accuracy, adequacy, validity, reliability, or availability of any kind.


Taking Care of Your Fingerprint Reader 

The U.are.U Fingerprint Reader is easy to clean and disinfect. While tolerant of residues left on the reader, it performs optimally when kept clean! Carefully follow the recommendations below and your fingerprint reader should give you years of reliable service. 

DigitalPersona, Inc.

Disinfecting U.are.U Readers with SC or HD Coating 

Standard Coating (SC) Use Ethanol or Isopropanol in concentrations of less than 50%. 

High Durability (HD) Use Hydrogen Peroxide (H2O2), in 3% solution in water. 

Cleaning U.are.U Readers with SC or HD Coating 

Either SC or HD coatings Use cellophane tape 

SC coating Use Ethanol or Isopropanol in concentrations of less than 50%. 


 Procedures for Cleaning or Disinfecting U.are.U Fingerprint Readers 

Instructions for Using Cleaning Solutions 

  • Apply the liquid to a soft lint-free material (same as used to clean camera lenses) and gently dab the fingerprint reader window. 
  • DO NOT pour any liquid directly on the reader window.
  • DO NOT submerge the scanner in liquid
  • DO NOT rub the window with an abrasive material, including paper.

Instructions for Using Cellophane Tape  Apply the sticky side of a piece of adhesive cellophane tape to the window, and then peel it away. 


  • Isopropyl Alcohol – (CAS # 67-63-0, C3H7OH) with a concentration in water of greater than 50%
  • Ethyl Alcohol / Ethanol – (CAS # 64-17-5, C2H60) with a concentration in water of greater than 50%.
  • Sodium Hypochlorite (Bleach) – (CAS # 7681- 52-9, NaClO) in any concentration.

Allowable Brand Name Solutions

Cleaning Solutions:

Product Active Ingredients
409 Spray Cleaner • n-Alkyl Dimethylbenzyl Ammonium Chloride (0.3-0.6%)
• n-Propoxypropanol (0.5 – 2%)
• Monoethanolamine (0.5 – 1.5%) 
Windex • 2-Butoxyethanol (0.5-1.5%)
•  Ethylene Glycol Hexyl Ether (0.5-1.5%)
•  Isopropyl Alcohol (1-5%) 
Mild detergent (such as Manu-Klenz)

Disinfecting Solutions (by category):


Product Active Ingredients
Sterall Plus Spray • Glutaraldehyde (0.28%)
•  Para-tert-amylphenol (0.0027%)
•  Ortho-phenylphenol (0.01%)


Product Active Ingredients
Betadine • 1-ethenyl-2-pyrrolidinone homopolymer compound with iodine (10.0-10.7%)

New Generation Quaternary/Alcohol Technology (Low-concentration)

Product Active Ingredients
Envirocide • Isopropanol (17.20%)
•  Ethylene Glycol Monobutyl Ether (3.0%) 
KleenAseptic B • Isopropanol (14.84%)
•  Ethylene Glycol Monobutyl Ether (2.84%) 
Sklar Disinfectant •  Isopropanol (21%)
•  Ethylene Glycol Monobutyl Ether (<1%)


Product Active Ingredients
LpH se •  p-tertiary amylphenol (7.6%)
•  #2-phenylphenol (7.7%)
•  Phosphoric acid (15.0%)
•  Isopropanol (7.5%)
WEX-CIDE •  ortho-Phenylphenol (3.4%)
•  ortho-Benzyl-para-Chlorophenol (3.03%)

Allowable Brand Name Cleaning and Sterilization Wipes

New Generation Quaternary/Alcohol Technology (Low-concentration)

Product Active Ingredients
Sani-Cloth HB •  Quaternary Ammonium Compound (1.0%)
•  o dimethyl benzyl ammonium chloride (0.07%) 
• o dimethyl ethylbenzyl ammonium chloride (0.07%)
Sani-Cloth Plus •  Isopropyl Alcohol (14.85%)
•  2-Butoxyethanol (1-4%)
•  Quaternary Ammonium Compounds (0.250%)

A downloadable file is below for easy reference

Cleaning SecuGen Reader

How to clean and disinfect your SecuGen fingerprint reader

Like everyone else, we are concerned about the spread of the COVID-19 virus. If more than one person uses the same fingerprint reader, we recommend that you clean and disinfect the reader between users as instructed below.

SecuGen Corporation


  1. If the surface is dirty, use a glass cleaner spray or wipe with a tissue, paper towel, or cloth dampened with a cleaning agent.
  2. Spray or wet the surface with common household disinfectant.
  3. Let the surface stay wet for as long as is recommended on the label of the disinfectant before wiping off or drying.


  • You can safely use disinfectants, such as diluted bleach solutions, anti-microbial sprays and wipes, on SecuGen fingerprint readers without harming the sensor window because it is made of glass. However, the housing of the reader is made of plastic, which may be damaged if strong solvents, acids or caustic solutions are used.
  • If using a detergent or soap solution to clean, apply it using paper towel or cloth. Squeeze out any excess liquid before cleaning the surface. Avoid pouring liquid directly onto the sensor or device.