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Molecular Devices Spectramax Gemini EM Microplate Reader
Molecular Devices Spectramax Gemini EM Fluorescence Microplate Reader

Our Price: $7,395.00

Condition: Fully Recertified and Tested to Perform at Manufacturer Specifications
Warranty: 180-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 1 to 3 Business Days
Included Documentation Molecular Devices Fluorescence Validation Report

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Quantity in Stock:3

Product Code: MD-GEM

Recertification Protocol
Technical Specification Sheet

Molecular Devices Spectramax Gemini EM Fluorescence Microplate Reader

Microplate Formats
6-,12-,24-,48-,96-, 384-wells

Wavelength Range (Excitation/Emission)
250 to 850 nm

Read Types
Endpoint, Kinetic, Spectrum, Well Scan

  • Built on the Gemini platform, offering high-quality top and bottom reading for solution and cell-based assays
  • Versatile format compatibility, ranging from 6- to 384-well microplates, with various modes like endpoint, spectral scan, and kinetic
  • Dual monochromators for excitation and emission with a wavelength range from 250 to 850 nm
  • Capable of reading up to four wavelength pairs in endpoint and kinetic measurements
  • Features AutoPMT electronics for superb accuracy and reproducibility of results
  • Suitable for a wide range of applications including enzyme assays, protein quantitation, ELISAs, and cell viability tests
  • Quick microplate read time with 96 wells in 15 seconds and 384 wells in 45 seconds
  • Temperature control from ambient +4°C up to 45°C with uniformity within 1°C at 37°C

The Molecular Devices Spectramax Gemini EM Microplate Reader is a highly versatile and sophisticated instrument designed for a broad spectrum of applications ranging from enzyme assays to cell viability tests. This state-of-the-art reader is part of the Gemini platform, known for delivering top-notch performance in both solution and cell-based assays. It supports a wide array of microplate formats, accommodating 6- to 384-well plates, and offers various read types including endpoint, kinetic, spectrum, and well scan modes. Featuring dual monochromators for excitation and emission, the Gemini EM boasts a broad wavelength range from 250 to 850 nm, allowing for up to four wavelength pairs in endpoint and kinetic measurements.

The Gemini EM’s advanced AutoPMT electronics ensure exceptional accuracy and reproducibility, while the reader's rapid throughput capabilities are evident in its ability to process 96 wells in just 15 seconds and 384 wells in 45 seconds. Additionally, the device offers precise temperature control, ranging from Ambient +4°C to 45°C, with uniformity within 1°C at 37°C, ensuring optimal conditions for various assays. The Gemini EM is not only fast and reliable but also designed for superior sensitivity, with top and bottom read sensitivities of 3.0 fmol/well and 8.0 fmol/well for FITC in 96 wells, respectively. Its dynamic range spans six orders of magnitude, accommodating a wide range of assay requirements. With its comprehensive suite of features, the Spectramax Gemini EM Microplate Reader is an essential tool for researchers demanding high quality, flexibility, and efficiency in their laboratory workflows.

Applications for the Gemini EM include enzyme assays, protein quantitation, microbial growth, ELISAs and immunoassays, transporter assays, nucleic acid quantitation, phosphotases/kinases, reporter gene assays, and cell viability, proliferation, and cytotoxicity.

The Molecular Devices Spectramax Gemini EM Microplate Reader includes:
  • > Windows 10 Data Station with Pre-Loaded Softmax Pro Software 6.5
  • > Operator's Manual
  • > Interface Cable
  • > Molecular Devices Fluorescence Validation Report
  • > Full 180 Day Part and Labor Warranty

Molecular Devices Gemini EM Specifications

General Info

Dimensions (H x W x D)

8.6 x 22.8 x 15 in (22 x 58 x 38 cm)


35 lbs (16 kg)

Power Source

100-240 VAC, 50/60 Hz


Wavelength Range Excitation

250 to 850 nm

Wavelength Range Emission

250 to 850 nm

Wavelength Selections

Monochromator, tunable 1.0 nm increments

Wavelength Bandwidth

9 nm


< 2.0 nm

Top Read Sensitivity

3.0 fmol/well FITC 200 l in 96 wells

Bottom Read Sensitivity

8.0 fmol/well FITC 200 l in 96 wells

Light Source

Xenon flash lamp

Microplate Read Time

Normal Mode

96 wells in 15 seconds

384 wells in 45 seconds

Dynamic Range

6 orders of magnitude

Temperature Range

Ambient + 4 up to 45C

Temperature Uniformity

1 at 37C

Computer Specifications


Intel I5-7200U CPU


16.0 GB



Hard drive

240GB Solid State Drive

Operating System

Windows 10 64-Bit

Molecular Devices Gemini EM Manual

SoftMax Pro Software Manual

Click Here to View all the Technical Specs for the Gemini EM

Why Buy From Marshall Scientific?

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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

  7 of 7 people found the following review helpful:
5 of 5 Incredible product and customer service January 4, 2021
Reviewer: Debbie Huff from Anaheim, CA  
Microplate reader works perfectly and interfaces without problems with the included laptop. System looks pretty clean and the laptop looks practically brand new.

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