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CLARIOstar Plus

Versatile, high-performance microplate reader with triple technology—monochromators, spectrometer, and filters

The CLARIOstar Plus is BMG LABTECH’s newest microplate reader and it is the only reader on the market available with the three technologies required to run any assay in your laboratory; patented LVF monochromators, UV/vis spectrometer, and high transmission optical filters. The CLARIOstar Plus does not compromise in sensitivity or flexibility, instead providing you with the tools to choose what is needed for your application.

The CLARIOstar Plus can be equipped with the measurement modes and options you desire proving you access to a multitude of assay modes: fluorescence intensity, full-spectrum UV/vis measurements, BRET, FRET, fluorescence polarization, HTRF, AlphaScreen, AlphaLISA, atmospherically controlled growth studies, and much more. Coupled with an intuitive control software with built in fluorophore and lumiphore libraries, real-time kinetic displays, MARS data analysis software with templates for data analysis such as DNA quantitation, Z’, delta F, and more, the CLARIOstar Plus can handle it all.

Anything is possible. Any wavelength. Any bandwidth. Any assay.


  • LVF Monochromators most sensitive and versatile monochromators available
  • UV/vis spectrometer for fast full spectrum measurements
  • LVF monochromator, UV/vis spectrometer, and filters in one instrument
  • High intensity stability controlled xenon flashlamp
  • High energy laser for AlphaScreen and AlphaLISA assays
  • Automated Z-height focus from top or bottom at 100 micron resolution
  • Atmospheric Control Unit for O2 and CO2 control
  • Control software with multiuser and 21 CFR capability built in
  • MARS data analysis software rivals the best data handling packages available
  • LVis Plate and Stacker compatible


  • MycoAlert Ready Device
  • Transcreener Far RedFP Validated
  • Transcreener Red TR-FRET Validated
  • Transcreener RedFI Validated
  • HTRF Compatible
  • LanthaScreen Certification Plus
  • DLReady

The CLARIOstar offers unmatched technology in a multimode reader. The LVF monochromators are a new innovative design that allows you to select your wavelength and bandpass, the bandpass being adjustable from 8nm to 100nm. This feature allows you to precisely tune the monochromator to your needs and provides you with sensitivity that matches filter performance.



bandwidth adjustment

The CLARIOstar’s UV/vis spectrometer can provide you with full-spectrum absorbance spectra, at a resolution of one nanometer, in less than one second per well. No other multimode microplate reader has this signature BMG LATBECH technology. Visualize your absorbance assays like you’ve never seen before.

UV VIS bellcurve

And the CLARIOstar allow you to use high transmission filter for the best sensitivity for demanding HTRF, AlphaScreen, fluorescence polarization, and other challenging assays. In conjunction with on-board reagent injectors, Atmospheric Control Unit, direct optics, and ultra-sensitive bottom reading the CLARIOstar can read any assay you can develop.

Atmospheric Control Unit (ACU)
Detection Modes 

Fluorescence Intensity
Fluorescence Polarization
Time-Resolved Fluorescence – including TR-FRET
UV/Vis Absorbance Spectrum

Measurement Modes 

Top and bottom reading
Endpoint and kinetic measurements
Sequential multi-excitation measurements
Sequential multi-emission measurements
Spectral scanning (fluorescence, luminescence, absorbance)
Ratiometric measurements
Well scanning

Microplate Formats 

6- to 1536-well plates, user-definable
LVis Plate with 16 low volume microspots (2 μL)

Microplate Carrier 

Robot compatible

Light Sources 

High energy xenon flash lamp
Dedicated laser for AlphaScreen®/AlphaLISA®


Low noise photomultiplier tube
CCD spectrometer

Wavelength Selection 
  • Dual Linear Variable Filter (LVF) Monochromators™
  • Linear Variable Dichroic Mirror
    Separates Ex & Em LVF Monochromators
  • Optical filters
    Ex and Em slides hold 4 filters each
  • LVF Monochromators + optical filters
    Use one for Ex and the other for Em
  • UV/Vis absorbance spectrometer
    Full spectra or 8 distinct wavelengths in < 1 sec/well
Optical Filters 

Excitation and emission slides for 4 filters each

Optical Path Guides 

Top and bottom: Enclosed, free-air optical light path guided by motor-driven mirrors and dichroics


Automatic focal height adjustment (0.1 mm resolution)

Spectral Range 


240 – 750 nm or 240 – 900 nm for FI, FP, TRF
240 – 750 nm for LUM

LVF Monochromators™

320 – 850 nm for FI
320 – 750 nm for LUM
Linear Variable Dichroic 340 – 740 nm for FI, LUM
Spectrometer 220 – 1000 nm for ABS
FI Filters
< 0.15 pM (< 3 amol/well Fluorescein, 384sv, 20 μL)
FI Filters
< 1.0 pM (< 50 amol/well Fluorescein, 384g, 50 μL)
FI Monochromator
< 0.35 pM (< 7 amol/well Fluorescein, 384sv, 20 μL)
FI Monochromator
< 3.0 pM (< 150 amol/well Fluorescein, 384g, 50 μL)
FP < 0.5 mP SD at 1 nM Fluorescein (384sv, 20 μL)
(black and white microplates)
Reader Control Kit (Eu) after 18h (384sv, 20 μL)
Delta F > 880 % (High Calibrator)
Delta F > 30 % (Low Calibrator)
TRF < 20 fM (< 0.4 amol/well Europium, 384sv)
LUM < 0.4 pM (< 8 amol/well ATP, 384sv, 20 μL)
with Laser
< 5 pM (< 100 amol/well P-Tyr-100, 384sv, 20 μL
with Spectrometer
Full spectrum captured in < 1 s / well
Selectable spectral resolution: 1, 2, 5, and 10 nm
OD range: 0 – 4 OD
Accuracy: < 1% at 2 OD
Precision: < 0.5% at 1 OD and < 0.8% at 2 OD
Read Times 
Flying mode (1 flash) 8 s (96), 15 s (384), 28 s (1536)
10 flashes 19 s (96), 57 s (384), 3 min 4 s (1536)
Reagent Injection 

Up to 2 built-in reagent injectors
Individual injection volumes for each well (3 to 500 µL)
Variable injection speed up to 420 µL / s
Reagent back flushing


Linear, orbital, and double-orbital with user-definable time and speed


+3 °C above ambient up to 45 °C or 65 °C


Integrated fluorophore library
Multi-user Reader Control and MARS Data Analysis Software included
FDA 21 CFR Part 11 compliant


Width: 45 cm, depth: 51 cm, height: 40 cm; weight: 32 kg

LVis Plate (Optional Accessory) 

Sample Capacity: Sixteen separate microdrop wells for 2 µL samples; One standard cuvette position for up to 1 mL samples.
Quality Control Internal Standards (optional): Four NIST traceable optical density filters (approximate values of 0.1, 0.3, 0.6 and 1.0 OD); One holmium oxide filter for wavelength accuracy
Dimensions: Conforms to SBS standards for microplates.

Atmospheric Control Unit (ACU) (Optional Accessory) 

Actively regulates O2 and CO2 – 0.1-20%

Stacker (Optional Accessory) 

Magazines for up to 50 plates – continuous loading feature

THERMOstar (Optional Accessory) 

Microplate Incubator and Shaker

Optical Filters (Optional Accessory) 

Excitation and emission slides for 4 filters each

Upgrades (Optional Accessory) 

Please contact your local representative for upgrades including options such as detection modes, reagent injectors, etc.

* (Optional Accessory) 

LOD = 3 x SD (20 blanks) / slope (6 pt std curve)
AlphaScreen® P-Tyr-100 assay kit, PerkinElmer, #6760620C
Microplates: white for LUM, AlphaScreen®, TRF; black for FI, FP; clear for ABS
96 = 96-well microplates
384sv = 384-well small volume microplates
384g = 384-well glass bottom microplates
1536 = 1536-well microplates