GloMax

Multimode Microplate Reader with Advanced Detection Capabilities

  • Luminescence, fluorescence, UV-visible absorbance, BRET and FRET detection, on a 384-well microplate reader
  • Built to run Promega NanoBRET® and luciferase reporter assays out of the box, with preloaded protocols
  • Optional dual-reagent injectors support flash luciferase assays
  • Can be used as a standalone plate reader or integrated into high-throughput automated workflows
  • Integrated data analysis software makes results easy to interpret

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Catalog Number: GM3000

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Overview
Protocols
FAQ
Specifications
Resources
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Easy-to-Use Plate Reader 

GloMax® Discover is a ready-to-use multimode plate reader developed with Promega reagent chemistries to provide a simple means of detecting luminescence, fluorescence and absorbance.

  • High-performance luminescence, fluorescence, UV-Visible absorbance, BRET and FRET, two-color filtered luminescence and kinetic measurement capabilities
  • Can be used as a standalone plate reader or integrated into high-throughput automated workflows
  • Integrated data analysis software makes results easy to interpret
Glomax plate reader for Luminescence Detection

What Is the Best Multimode Microplate Reader for Luminescence and NanoBRET® Assays?

The best fit depends on throughput and workflow. GloMax® Discover suits labs running NanoBRET®, BRET and luciferase reporter assays, with reagent-matched protocols, optional injectors and built-in BRET/FRET capabilities—without the added cost of full HTS-class monochromator systems. The instrument features a detection limit of 3 x 10–21 moles of luciferase with a linear dynamic range of 9 logs, making it ideal for detection of both high and low signals on the same plate.

Does GloMax® Discover Support Dual-Emission BRET Detection?

Yes. GloMax® Discover measures BRET and FRET using two-color filtered luminescence detection with a built-in filter paddle and a single high-sensitivity PMT. Donor and acceptor signals are read sequentially rather than simultaneously—a simpler, lower-cost approach well suited to routine BRET assays with stable signal kinetics.

Preloaded Protocols for Faster, Easier Data Analysis 

GloMax® plate readers have high sensitivity and a wide dynamic range, so you can detect both high and low signals on the same plate and have confidence in the accuracy of the signal recorded from each well. These instruments provide a range of options for your throughput needs and are equipped with integrated software that makes data analysis easy. GloMax® instruments come preloaded with protocols designed to work seamlessly with a wide variety of Promega luminescent and fluorescence-based assays at the touch of a button.
Compatible Promega Assays

GloMax® Instruments Come with Dozens of Preloaded Protocols

glomax navigator has 40+ preloaded protocols
glomax explorer has 65+ preloaded protocols
glomax discover has 70+ preloaded protocols

GloMax® Application Notes

No need to reinvent the wheel—we’ve already used GloMax® instruments for everything from cell viability, toxicity and metabolism, kinase and cell signaling, reporter gene assays, nucleic acid quantitation for NGS sequencing, PROTACs and protein degradation, bioassays, BRET, ELISAs and even water quality testing. Search our Application Notes collection for examples using GloMax® instruments with a wide range of bioluminescence- and fluorescence-based assays.

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GloMax Discover System Multimode Plate Reader

Streamline Your Workflow with Automation

GloMax® Discover integrates with many commercially available automated systems, including liquid handers, plate stackers and robotic arms to enable seamless workflows for high-throughput assay quantitation and screening.

Our built-in and compliant SiLA2 communication driver makes integration easy.

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Microplate Reader Compliance for Your GxP Workflow

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Service and Support

One Call Supports It All

Promega supplies both the reagents and the instrument, so one call to Promega answers any questions you may have about assay chemistries or instrument performance.

Contact Technical Services

Ensure Minimal Instrument Downtime

  • Field Support and Loaner Programs
  • Service Packages
  • IQ and OQ Packages

Warranty and Service Agreements

  • Backed by a one-year warranty.
  • Additional warranty and service agreements are available.
  • For more information contact Promega Technical Services
Multiplate Reader & Fluorometer Support

Available Separately

Product Catalog #
Luminometer Light Plate E6531
Bar Code Reader AS3200
USB Ethernet Adapter AS8403
GloMax® Discover Empty Luminescence Filter Paddle GM3011
GloMax® Discover Empty Fluorescence Filter Paddle GM3012
GloMax® Discover Luminescence Filter Paddle GM1090
GloMax® Discover Fluorescence Filter Paddle GM1100
GloMax® Discover 96 Half-Position Aperture Assembly GM1050
GloMax® Discover 96-Position Aperture Assembly GM3040
GloMax® Discover 384-Position Aperture Assembly GM3041
GloMax® Discover Aperture Plate GM3042
GloMax® Dual Injectors with Pump GM3031
Inner and Outer Injector Tubing, Natural GM3014
GloMax® Explorer Absorbance Module Upgrade GM3520
GloMax® Discover Sales Rental E5301
GloMax® Discover or Explorer Installation Qualification SA1104
GloMax® Discover or Explorer Operational Qualification SA1105
GloMax® Discover or Explorer Installation and Operational Qualification SA1106
GloMax® Discover Standard Service Agreement SA4000
GloMax® Discover or Explorer Preventive Maintenance SA4030
GloMax® Discover Premier Service Agreement SA4002
GloMax® Discover Premier Warranty Upgrade SA4001

Frequently Asked Questions

 


 

What is the best multimode microplate reader for luminescence and NanoBRET® assays?

The best fit depends on throughput and workflow. GloMax® Discover suits labs running NanoBRET®, BRET and luciferase reporter assays in 6- to 384-well formats, with reagent-matched protocols, optional injectors and built-in BRET/FRET filtered detection—without the added cost of full HTS-class monochromator systems.

 

Does GloMax® Discover support dual-emission BRET detection?

Yes. GloMax® Discover measures BRET and FRET using two-color filtered luminescence detection with a built-in filter paddle and a single high-sensitivity PMT. Donor and acceptor signals are read sequentially rather than simultaneously—a simpler, lower-cost approach well suited to routine BRET assays with stable signal kinetics.

 

Can a multimode reader handle NanoBRET® assays?

Yes. Any multimode reader with luminescence detection in the ~450–600nm range and dual-color optics, whether filtered or simultaneous dual-PMT, can run NanoBRET® assays. GloMax® Discover is validated with Promega NanoBRET® target engagement and protein-protein interaction assays using its built-in BRET/FRET filtered luminescence detection.

 

Do BRET assays need dual-emission detection?

Yes. BRET assays measure two wavelengths—the luciferase donor emission and the acceptor fluorophore emission—so the reader needs dual-wavelength capability, either sequential (filter-based, as in GloMax® Discover) or simultaneous (dual-PMT systems). Simultaneous detection reads faster but isn’t required for most standard BRET assays with stable kinetics.

 

Do you need reagent injectors for flash luminescence assays?

In most cases, yes. Flash-type luciferase assays, including Dual-Luciferase® assays, peak within seconds of substrate addition, so onboard injectors that dispense reagent immediately before each read reduce timing variability between wells. GloMax® Discover offers an optional dual-injector system (5–200μl dispense range) for this purpose.

 

What plate formats matter for high-throughput screening: 384, 1536, or 3456 wells?

Choice depends on throughput needs. 384-well plates are standard for routine screening and most cell biology labs; 1536- and 3456-well plates support ultra-high-throughput drug discovery, lowering reagent cost per well. GloMax® Discover supports 6- to 384-well plates; labs scaling to 1536-well campaigns should evaluate HTS-class readers.

 

Which features matter most for live-cell kinetic luminescence assays?

Key features include stable heating, orbital or linear shaking, fast kinetic read intervals and injector-based reagent addition. GloMax® Discover provides heating to 45°C, shaking from 100–500 cycles/minute and kinetic read modes, but has no CO2/O2 environmental control—extended, multi-hour live-cell incubation assays may need a dedicated incubator or an HTS platform with built-in gas control.

 

Which reader is best for luciferase reporter assays in screening?

For labs standardized on Promega reporter chemistries, such as Dual-Luciferase®, NanoDLR™ and Bio-Glo™ assays, GloMax® Discover is purpose-built with 70+ preloaded protocols, optional injectors and validated performance, streamlining setup compared with configuring a general-purpose HTS reader from scratch.

Design Features

Instrument Specifications
Detection Modes Luminescence, Fluorescence Intensity, UV-Visible Absorbance, Filtered Luminescence, BRET and FRET
Sample Format 6-, 12-, 24-, 48-, 96- and 384-well plates
Tablet PC Windows® 8.1 or 10 Tablet PC with USB connection to instrument
Read Speed 96-well plate: less than 1 minute; 384-well plate: less than 3 minutes
Automation Compatibility Hardware and software accessible to third-party hardware/software control, including LIMS.
Dimensions 18.5in (46.9cm) width
19.5in (46.5cm) depth
10in (25.4cm) height without Tablet and PC mounted
16in (35.5cm) height with Tablet and PC mounted
Weight Approximately 60lb (27kg)
Power Requirements 120VA, 50/60HZ
Warranty 1-year parts and labor warranty included
Regulatory Compliance For Research Use Only. Not for use in Diagnostic Procedures
Fluorescence Module Specifications
Detector PIN-photodiode
Light Source Wavelength-matched LED
Read Position Top reading
Wavelengths selection Filter module with 5 standard excitation and emission filters. Empty filter positions are available for custom excitation and emission wavelengths.
Wavelengths included UV (Ex: 365nm, Em: 415–445nm) Blue (Ex: 475nm, Em: 500–550nm) Green (Ex: 520nm, Em: 580–640nm) Red (Ex: 627nm, Em: 660–720nm) AFC (Ex: 405nm, Em: 495–505nm)
Detection Limit 2fmol fluorescence dye/200µl
Linear Dynamic Range >6 logs (assay-dependent)
UV-Visible Absorbance Module Specifications
Detector Top-reading, head-on photon counting photomultiplier tube (PMT)
Light Source Xenon flash lamp
Spectra Range 200–600nm
Filter Wheel 9 absorbance filters included
Wavelengths included 230, 260, 280, 320, 405, 450, 490, 560 and 600nm 10nm band pass
Detection Limit 0.1 O.D.
Dynamic Range 0–4.0 O.D.
Shaker System Specifications
Shaking Pattern Linear or orbital patterns
Shaking Intensity 100–500 cycles/minute
Luminescence Module Specifications
Detector Top-reading, head-on photon counting photomultiplier tube (PMT)
Wavelength Range 350–700nm
Detection Limit 3 × 10–21 moles of luciferase
Linear Dynamic Range 9 logs
Cross-talk Less than 3 × 10–5 (white, 96-well plate, Corning 3912)
Filtered Luminescence Built-in filter paddle
Injector System Specifications
Number of injectors (optional) Two injectors
Dispense Volume Range 5–200µl in 1µl increments
Plate Compatibility 6-, 12-, 24-, 48- and 96-well plates
Injection Speed 20–500µl per second
Waste Collection Tray Volume Approximately 50ml
Void Volume 600µl
Heating System Specifications
Temperature Range Ambient to 45°C
PC Requirements
Operating System Windows® 8.1 or 10 Professional version, 64-bit, with USB connection to instrument
RAM 4GB
Disk Space 64GB
Other Requirements Microsoft.NET 4.6.1 Framework or newer (full version)

Specifications

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Certificate of Analysis

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Use Restrictions

For Research Use Only. Not for Use in Diagnostic Procedures.

Storage Conditions

Q

Patents and Disclaimers

European Pat. No. 2972400 and Japanese Pat. No. 6324485.

Resources

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Product Citations

Recent publications that mention the use of this product.

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