China Body Composition Analyzer Scale

This device estimates body composition using multi‑frequency bioelectrical impedance analysis (BIA). A low‑amplitude alternating current passes through electrodes placed on the hands and feet, and the resulting impedance values are correlated with fat mass, lean mass, total body water, and bone mineral content via validated regression equations.

Technical Specifications

Parameter	Typical Value / Range
Measurement Frequencies	5 kHz, 50 kHz, 250 kHz (customizable)
Current Amplitude	≤ 0.8 mA RMS ( IEC 60601‑2‑27 compliant )
Electrode Count	8 tactile electrodes (4 hand, 4 foot)
Weight Capacity	0.5 kg – 250 kg (0.1 kg resolution)
Body Fat Accuracy	± 1.5 % of reference DXA (typical)
Display	7‑inch touchscreen, 800×480 px, optional multi‑language UI
Power Supply	100‑240 V AC, 50/60 Hz, 15 W max
Operating Temperature	10 °C – 40 °C, 20 % – 80 % RH non‑condensing
Dimensions (L×W×H)	350 mm × 340 mm × 110 mm
Net Weight	4.2 kg

Measurement Principle and Sensor Design

The analyzer injects a sinusoidal current at three distinct frequencies. Low‑frequency current primarily measures extracellular water, while higher frequencies penetrate cell membranes to assess intracellular water. Impedance magnitude and phase angle are sampled at each electrode pair, allowing segmentation of trunk, arms, and legs when the hand‑to‑foot configuration is used. Electrode surfaces are stainless‑steel with a conductive hydrogel layer to ensure stable contact pressure below 15 kPa, minimizing measurement variance due to skin impedance fluctuations.

Applications in Industrial and Clinical Settings

In corporate wellness programs the scale provides rapid, repeatable snapshots of employee body composition, supporting longitudinal health risk stratification without invasive procedures. Fitness centers use the segmental output to tailor resistance training programs by identifying muscular imbalances between limbs. Clinical departments employ the device for pre‑operative nutritional screening, monitoring fluid shifts in dialysis patients, and tracking sarcopenia progression in geriatric cohorts. The non‑contact nature and short measurement time (<20 seconds) make it suitable for high‑throughput screening environments where traditional DXA or hydrostatic weighing are impractical.

Customization Options

• Electrode layout – optional hand‑only or foot‑only configurations for specific research protocols.
• Housing material – ABS‑PC blend standard; antimicrobial coating or medical‑grade polycarbonate available upon request.
• Display language – firmware supports English, Mandarin, Spanish, Arabic; additional languages can be loaded via USB.
• Software integration – HL7 or REST API modules for EMR/LIMS connectivity, with configurable data fields.
• Calibration – factory traceable to NIST‑standard resistors; optional on‑site verification kit with certified phantom.

Quality Control and Testing

Each unit undergoes a three‑stage verification: (1) electrical safety test per IEC 60601‑1, including leakage current and dielectric strength; (2) functional test using a precision impedance phantom to confirm measurement accuracy within ±0.5 % of target values across the frequency range; (3) environmental stress test comprising temperature cycling (‑10 °C to 50 °C) and humidity exposure to ensure drift remains under 1 % after 100 hours. Final inspection includes a visual check of electrode integrity, touchscreen responsiveness, and firmware version logging before packaging.

FAQ

• Can the electrode spacing be altered for pediatric use? Yes, the electrode arrays can be repositioned or replaced with smaller pediatric pads; the software automatically adjusts the segmental equations based on input height.
• What information is required before quotation? Please provide intended application environment, required measurement parameters (e.g., segmental fat, visceral fat estimate), desired output format (local display, API, or both), and any regulatory certifications needed for your market.
• Which materials are available for the housing? Standard ABS‑PC, optional antimicrobial ABS‑PC, and medical‑grade polycarbonate; all are UL‑94 V‑0 rated.
• How is quality inspected before shipment? Each unit receives a full functional test against a calibrated impedance phantom, a safety leakage current test, and a cosmetic inspection; results are recorded in the batch traceability report.
• What packaging methods protect the scale during export? Units are packed in double‑wall corrugated boxes with internal EPS corner protectors, sealed with polyethylene film, and placed on pallets with strap stabilization; optional wooden crates are available for high‑vibration routes.

Contact for Inquiry

To request a detailed quotation, technical datasheet, or arrange a sample evaluation, please contact our engineering team. We will respond with the necessary documentation and lead‑time information within one business day.