4293E READER Molecular Dev. Spectra Max 250

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Item: 4293E_READER

  • Fully tested
  • Thoroughly cleaned
  • Ships from Haverhill, MA

Contact Us

Call 978-521-2221
to request information & pricing for item 4293E_READER

90-Day Warranty

American Instrument Exchange
Contact us for all your used lab equipment needs

1023 Western Ave.
Haverhill, MA 01832

Phone: 978-521-2221
Fax: 978-521-8822

Email: info@americaninstrument.com

Shipping Policy

 Molecular Devices SpectraMax 250

  • Temperature range: 4°C above ambient to 45°C
  • Digital controller and display               
  • 90 day warranty

SpectraMax Absorbance Microplate Readers provide accuracy and precision in nucleic acid/protein quantification assays, enzymology, ELISA, early ADME studies, or any demanding spectrophotometric application. The SpectraMax 250 Reader was introduced in 1994 as the first monochromator-based absorbance microplate spectrophotometer.

All of the equipment we sell is used and reconditioned. Our technicians test all equipment to confirm that it operates properly and to the manufacturer’s specifications. While we can’t test for a specific analytical application, we will do our best to simulate the conditions under which the equipment will be run. If you have particular testing requirements or requests please let us know and we’ll work with you to make sure these requirements are addressed during testing.

Wavelength Range:

250 - 850 nm

Wavelength Selection

Monochromator, tunable 1.0 nm increments

Wavelength Bandwidth

2 nm

Wavelength Accuracy:

< ± 2.0 nm

Wavelength Repeatability

± 0.2 nm

Photometric Range

0.0 to 4.0 OD

Photometric Resolution

0.001 OD

Photometric Accuracy

< ± 0.006 OD ± 1.0%, 0.0 - 2.0 OD

Photometric Precision

< ± 0.003 OD ± 1.0%, 0.0 - 2.0 OD

Stray Light

< 0.05% @ 230 nm

Light Source:

Xenon flash lamp


12 seconds


9 second minimum interval

Temperature Range

Ambient + 4 °C up to 45 °C

Temperature Uniformity:

± 0.5 °C @ 37 °C

ximage image

The photos above are representative. Please bear in mind that the equipment shown is currently in storage in our warehouse and that in addition to testing each machine we will clean all the equipment thoroughly prior to shipment. We often have multiple units of each model in stock and sometimes we're unable to feature photos of every single unit. At your request, we can provide photos of the equipment in your order after it has been tested and cleaned.