Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Thermo Scientific™ GENESYS™ 20 Visible Spectrophotometer

This product has been discontinued. Please check out the newest visible spectrophotometer, the Thermo Scientific™ GENESYS™ 30.

Manufacturer:  Thermo Scientific™ 4001000

 View more versions of this product

Catalog No. 14-385-445

This item has been discontinued by the manufacturer and is no longer available. Please call customer service for assistance: 1-800-766-7000.
View substitute products »



This product has been discontinued. Please check out the newest visible spectrophotometer, the Thermo Scientific™ GENESYS™ 30.

Multiple purpose capabilities allow you to measure a wide range of analytes.

Precise and Reliable

  • Compact footprint provides a space-saving, convenient systemâ€? Intuitive keyboard with integrated controls and LCD display
  • Routine measurements require just a few keystrokes
  • Direct measurement of routine absorbance or transmittance data
  • Concentration mode for single point standard or factor-based quantitative analysis
  • Optional holders for test tubes and long path cells to 50mm
  • User-selectable choice of five languages (English, French, German, Spanish, Italian)
  • Bidirectional RS-232-C interface

Low Cost of Ownership

  • Cleanable, chemical-resistant surfaces and rugged design withstands harsh laboratory environments
  • Few moving parts; virtually maintenance-free operation
  • Choose instrument with or without integral printer


10mm cell holder, dust cover, and U.S. power cord.


Fisher Service Division offers several types of service agreements for the equipment featured here. For details on these agreements, equipment repairs, and calibration services, see the front of the catalog. For immediate assistance, call 1-800-395-5442.

Description & Specifications


1 year
33 cm
Silicon photodiode
0.003 A/hr
7 in.
50/60 Hz
RS-232-C (serial)
≤0.001A at 0A ≤0.004A at 2A, 500 nm
±0.003A from 0.0 to 0.3A1.0% from 0.301A to 2.5A, NIST 930D filters
Absorbance, %Transmittance, Concentration
<0.1%T at 340 nm and 400 nm
±2.0 nm
10 lb.
12 in.
13 in.
GENESYS 20 without printer
In Germany, France, or Spain, use Catalog #4001-03
20 character, 2 line LCD
Selected automatically, 120 V
19 cm
10mm cell holder; dust cover; U.S. power cord
Tungsten-Halogen (typical service life 1000 hours)
Single beam
-0.1-2.5A; 0-125%T, 0-1999C
≤8 nm
GENESYS 20 without printer
325 - 1,100 nm
4.5 kg
30 cm
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit