Tissue blood flow monitoring

  • Moor Instruments have consistently provided excellent help and support for my research.

    Kim Gooding, PhD
    University of Exeter Medical School

  • In a nutshell, moorFLPI-2 is the most user-friendly system for studying cerebral blood flow regulation in rodents.

    Chia-Yi (Alex) Kuan, MD, PhD
    Emory University School of Medicine

  • It goes without saying that the company's imaging technology itself is superb!

    Gourav Banerjee
    Leeds Beckett University

  • I cannot rate the company or the staff highly enough.

    Jim House, PhD
    University of Portsmouth

  • I expect to be using Moor Instrument’s technology for many years to come!

    Faisel Khan, PhD
    Ninewells Hospital & Medical School

  • We have found Moor equipment to be extremely dependable and innovative.

    Dean L. Kellogg, Jr., MD, Ph.D
    University of Texas Health Science Center

  • Laser Doppler Imager is a standard accurate method we now use in our cerebral blood flow and brain perfusion in our laboratory.

    Momoh A. Yakubu, PhD
    Texas Southern University

  • We can't recommend Moor instruments highly enough. The technology is at the cutting edge and the support second to none.

    Paul Sumners, PhD
    London South Bank University

This system has now been superseded by the moorVMS-LDF, for full details please click here.

Unfortunately optic probes for this product are no longer manufactured.

The moorLAB was designed specifically for the research market. It uses identical signal processing and internal optical design as found in our DRT4 model so there was absolutely no compromise in the measurement quality. We left off features that are non essential for researchers leaving an easy to use, high quality yet competitively priced laser Doppler monitor. The system was available in a 1,2,3 or 4 channel configuration and upgrade is a very simple matter of connecting extra satellite channels to the base Server unit. Additional satellite channels can be purchased separately at any time.

The moorLAB will interface directly with your PC through either a USB or Serial port for data collection and analysis using our Windows based package, moorSOFT for Windows/moorLAB. All software is produced in-house to allow us full control over specification and functionality. If you use a data acquisition system already then data is also output as an analogue signal (0 to 10V) through convenient BNC connectors on the rear panel of the Server.

This system has now been superseded by the moorVMS-LDF, for full details please click here.

The following products are AVAILABLE TO BUY ONLINE and work with the moorLAB

This system has now been superseded by the moorVMS-LDF, for full details please click here.

This section lists the more common questions our customers have about the moorLAB system. If you have a question you would like answered that does not appear below then please email us. We are happy to help!

Q. How is data transferred from the moorLAB system?
A. Unlike the DRT4 the moorLAB does not have an internal data memory so you will need to connect the system to a PC, chart recorder or data acquisition system to permanently record the trace. Every moorLAB will connect to your PC running Moorsoft for Windows/moorLAB via USB or serial ports. Convenient BNC connections are also provided on the rear panel to link straight to your chart recorder or data acquisition system (0 to 10 Volts) fully scalable.

Q. How many sites can I measure from simultaneously with the moorLAB?
A. The moorLAB offers flexible channel expansion from the base single channel Server with additional Satellites. Up to 3 Satellites can be added to one Server so you can measure from 1,2,3 or 4 sites depending on your configuration.

Q. How often should the probes be calibrated?
A. We have some customers who calibrate daily and others less regularly. The important thing to bear in mind is that the room temperature should be close to the same each time you calibrate. There is a risk of 'over calibration' - excessive calibration throughout the day - which can be counterproductive if there are large temperature swings. This can result in changes in the Brownian motion of the polystyrene microspheres. We would normally recommend calibrating at least weekly during the course of a scientific investigation. Calibration is also a good indicator of probe condition. A damaged probe will not calibrate!

Q. Can I measure other signals at the same time as flux?
A. Yes, the moorLAB outputs Flux, Conc, Speed and DC to PC (Moorsoft for Windows/moorLAB). Flux+Conc or Flux+DC are output via analogue BNC connections. moorLAB signals can be integrated with those from other devices if you have spare input channels on your data acquisition system.

Q. Should the skin be cleaned before measurements?
A. Yes - we recommend using an alcohol wipe. Dry or flaky skin can be removed with sticky tape.

This system has now been superseded by the moorVMS-LDF, for full details please click here.

The list below contains a selection of references citing use of moorLAB. The list below is a small selection. Please contact us for reference lists on your chosen subject.

Martin Katzman, Sylvie Cornacchi, Aimee Coonerty-Femiano, Bronwen Hughes, Monica Vermani, Lukasz Struzik and Brian M Ross.
Methyl Nicotinate-Induced Vasodilation in Generalized Social Phobia.
Neuropsychopharmacology (2003) 28, 1846-1851

Mitja Benedičič, David Debevc, Vinko V. Dolenc, and Roman Bošnjak.
Laser-Doppler Flowmetry and Horner’s Syndrome in Patients with Complete Unilateral Damage to the Parasellar Sympathetic Fibers During Cavernous Sinus Surgery.
Croatian Medical Journal, 2006 47:292.7

Brett J. Wong, Brad W. Wilkins, Lacy A. Holowatz, and Christopher T. Minson.
Nitric oxide synthase inhibition does not alter the reactive hyperemic response in the cutaneous circulation.
J Appl Physiol 95: 504-510, 2003

Thompson CS, Holowatz LA, Kenney WL.
Cutaneous vasoconstrictor responses to norepinephrine are attenuated in older humans.
J Physiol Regul Integr Comp Physiol 288

This system has now been superseded by the moorVMS-LDF, for full details please click here.

Moor Instruments are committed to product development. We reserve the right to change the specifications below without notice.


Laser Safety Classification
Class 3A per BSEN 60825-1:1994
Class 1M per IEC 60825-1:2001
Class 1 per 21 CFR 1040.10 and 1040.11
Output power 1.6mW max.
Wavelength 785nm + 10nm
Angular spread of laser light from probe tip 30° + 3°
All specifications include cumulative measured uncertainties and expected increases in values after manufacture


Bandwidth: high pass 20Hz Low pass selectable 3KHz, 15KHz, 22KHz
Output time constants: 0.02s, 0.1s, 0.5s, 1.0s, 3.0s
Automatic gain control and zeroing


Digital LCD screen display
40Hz maximum data rate
0-1000 arbitrary perfusion units
1 serial interface RS232 optically isolated
8 analogue outputs 0-10v D/A 12 bit (external bus)
1 moorLAB Bus


Flash memory programmable from PC
Output scale adjustment
Filter bandwidth selection
Calibration – storage of four probe scaling constants per channel


Universal voltage switch-mode power supply range 84 to 264v at 40VA, 50 to 60 Hz
Dimensions W H D mm
SERVER 275 x 60 x 260
SATELLITE 275 x 110 x 280
Weight kgs


Temperature 0-45oC
Humidity 0-80% RH
Atmospheric pressure 500-1060hPa
Type of protection against electric shock – Class 1
Degree of protection against electric shock – Type BF
Degree of protection against ingress of liquid – IPXO (not protected)
Degree of protection against flammable anaesthetics – equipment not suitable for use in the presence of a flammable anaesthetic mixture with air or with nitrous oxide
Mode of operation: continuous


Accuracy: ± 10%, relative to Moor Instruments ‘standard’ moorLAB
Precision: ± 3% of measurement value
Range: 0-1000 PU

Accuracy: ± 10%
Precision: ± 5% of measurement value
Range: 0-1000AU

Accuracy: ± 10%
Precision: ± 3%
Range: 0-255