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Running Men
4125 Market St #10
Ventura, CA 93003
(800) 235-3333
"QuadScan" Multi Freqency Body Composition Analyzer

The Bodystat(R) QuadScan 4000 device offers a quick, easy, economical and non-invasive alternative to other methods of fluid assessment and Body Composition analysis, e.g. radioisotope dilution, underwater weighing.

The principle of measuring the flow of current through the body (impedance) is dependent on the frequency applied. At low frequencies, the current cannot bridge the cellular membrane and will pass predominantly through the extra-cellular space.

At higher frequencies penetration of the cell membrane occurs and the current is conducted by both the extra-cellular water (ECW) and intra-cellular water (ICW).

By measuring the impedance at 5 kHz and 200 kHz and by applying predictive equations, it is possible to estimate both ECW and TBW (Total Body Water) respectively and by deduction, ICW. ECW can be related to Extra-Cellular Mass and ICW to Body Cell Mass.

By measuring the impedance at 50 kHz and applying the unique Bodystat equation Body Fat, Lean Mass and Dry Lean Mass can be assessed. The QuadScan 4000 contains separate Body Composition equations for Children 6 years and over and Adults. In addition the QuadScan 4000 measures at 100 kHz.

Total body weight, height, age and gender are required by the predictive equations used in the hardware unit to display the results on the LCD screen. Where it is impractical to determine weight, as in the case of certain hospitalised patients, alternative equations can be applied in the QuadScan 4000 program to calculate ICW, ECW and TBW.

Whole Body analysis, rather than partial body analysis of arms or legs only, is measured for greater accuracy. In addition, alternative equations provide for the proximal placement of electrodes on sternum and knee to potentially monitor more sensitively the changes in fluid levels in the trunk area.

The strategic placement of electrodes on the chest area could provide for the monitoring of change in impedance values (hence fluid shifts) in the left and right lung individually.

The QuadScan 4000 measures/calculates

  • ECW % and ECW Volume*
  • ICW% and ICW Volume*
  • TBW % and TBW*
  • 3rd Space Water*
  • Body Cell Mass*
  • ECW/TBW Nutrition Index*
  • Plus Normal % Levels
  • Body Fat % and Fat Weight*
  • Body Lean Mass *
  • Dry Lean Mass *
  • Basal Metabolic Rate (BMR)*
  • BMR/Body Weight
  • Average Daily Calorie Requirement*
  • Waist/Hip Ratio
  • Body Mass Index - Plus Normal Range
  • Body Fat Mass Index (BFMI)* *NEW*
  • Fat Free Mass Index (FFMI)* *NEW*
  • Impedance Index *NEW*
  • Impedance Values at 5, 50, 100 and 200 kHz
  • Resistance 50 kHz *NEW*
  • Reactance 50 kHz *NEW*
  • Phase Angle 50 kHz *NEW*
* Estimate

QuadScan 4000 Software for Windows
The Body Composition Data is instantly downloaded directly from the QuadScan 4000 using Bluetooth technology. This saves time and eliminates the risk of error inherent in re-keying subject data.

The main program features include:

Body Composition Analysis in a 2-page summary report.

Trend Report, enables a user to track lean/fat ratios, fluid levels and impedance values over a period of time. The user can also track changes in Blood Pressure, Cholesterol, Waist to Hip, Heart Rate and Lung Function.

Weight & Activity Manager, allows a user to develop a series of exercises in order to calculate the amount of kilocalories these will burn This adjustment may then be incorporated into a user's own diet program. The number of weeks to achieve goal weight is automatically determined.

Cardiac Risk Analysis, assessment of health status relating to lifestyle. Factors include exercise levels, smoking, blood pressure, family history, etc. The screen immediately displays the effects of potential lifestyle changes e.g. if a subject smokes 20 cigarettes a day and they agree to reduce their smoking to 5 cigarettes a day the impact on their Cardiac Risk can be seen immediately on the screen.

Alternative Equations, these are available for competitive athletes, children 6 years and over and geriatrics and may be selected as required by the user to determine % fat and lean muscle levels. Alternative metabolic formulae are also included and the user has the option to select their own % fat ranges.

TBW, ECW and ICW Trend Reports, these reports enable the user to track the changes in a patient's hydration status and body cell mass.


  • Multi-frequency BIA unit with Bluetooth for PC communication
  • Segmental measurements possible using Impedance Index concept
  • Safe and Non-invasive
  • Easy to use
  • Lightweight and portable
  • QuadScan 4000 Software
  • Built-in automatic calibration
  • Test results available within seconds
  • Battery operated
  • High contrast, 2 line LCD display
  • Automatic 100 test counter
  • Subject data recall
  • Actual results & recommended ranges
  • Low battery alarm system
  • 12 month Parts and Labor Warranty on a return to factory basis
  • Accepts metric or imperial units
  • Quality approved: CE 0120 Medical Devices Directive and FDA
  • Available in English, French, German, Italian, Portuguese and Spanish


  • Non-invasive assessment of hydration and nutrition status
  • Assess nutritional status of patients on admission and pre-surgery
  • Monitor the Impedance Index during hospitalisation - without the need to weigh the patient and irrespective of age, weight, population group *NEW*
  • Monitor Lean Body Mass, rather than Total Body Weight to determine the patient's response to nutritional supplements
  • Determine if weight gain is due to increase in Lean Body Mass or fluid retention
  • Able to monitor hydration status
  • Test can be performed at the bedside, versus other more complicated and expensive methods
  • Quick corrective action can be taken to improve the health of the patient
  • Ease of use allows for regular monitoring of status as frequently as required (minutes, hours, days, etc)
  • Quick, reliable, cost-effective, reproducible results
  • Far more informative than BMI Number of measurement parameters can be selected to meet specific needs
  • Trend graphs with QuadScan 4000 Software Program, available for quick evaluation for remedial action
  • Exact time of measurements recorded by Real Time Clock

    The Bodystat QuadScan 4000 System includes:

    • Bio-Impedance Analysis Unit
    • Comprehensive Hardware User's Guide on CD Cable Leads
    • 120 Disposable Long Electrodes
    • Calibrator
    • Duracell Batteries AA (6)
    • Bodystat QuadScan 4000 Software Program (No Annual Licence Fee) with unlimited Telephone/E-mail Software Support
    • Bluetooth module fitted to download stored test data into a PC *NEW*
    • Customised Padded Shoulder Bag
    • Pictorial laminated Quick Guide
    • 12 month Parts and Labor Warranty on a return to factory basis (excludes lead wires)


    "The use of Bodystat Quadscan has changed the paradigm of so called weight loss and instead focused our attention on the main core issue of redistributing fat and muscle by analyzing the body composition. My patients have a completely new outlook in terms of the concept of weight and wellness. Bodystat Quadscan is such an easy tool to measure body composition and provide the patients with regular objective measurements that they can see and analyze over a period of time. My patients who range from obese to athletes have benefited tremendously from the use of this machine. I cannot imagine doing what I do without the use of this tool".


    Click here for "More Bodyfat Analyzers"

    The manufacturer does not allow us to show discounted price, call office

    Last Updated: 3 Oct 2023

  • Qty Product Catalog Number Price

    Electrodes for MDD/Quadscan **NOW USE REPLACEMENT PART# 17085-2** 17085-3 17.75
      Buy 5 or more for $16.85 each

    Printer Paper, 2 large rolls 17085-12 25.00
      Buy 5 or more for $22.50 each

    "Quadscan" multi-frequency body composition analyzer 17089 6,550.00

    BIAS Platinum Quadscan Software (2015 Upgrade) 17087-2 345.00

    Replacement cables for touchscreen models 17082-1 155.50