Adam MUW Ultrasonic Medical Scale with Height Measurement

Overview

The Adam MUW Ultrasonic Medical Scale is a CE-marked, Class III medical device engineered for clinical environments requiring simultaneous, non-invasive measurement of patient height, weight, and derived BMI. It employs dual-sensor architecture: a high-precision load cell platform for weight (±0.1 kg repeatability) and an integrated ultrasonic transducer array for height measurement (±0.1 cm accuracy), eliminating mechanical stadiometer contact and reducing cross-contamination risk. Designed in accordance with ISO 13485:2016 quality management standards for medical devices, the MUW complies with EN 10204:2004 Type 3.1 material certification requirements for structural components and meets IEC 60601-1 safety specifications for medical electrical equipment. Its compact footprint (620 × 390 × 120 mm) and integrated castor wheels support seamless deployment across outpatient clinics, primary care facilities, and mobile health units.

Key Features

• Ultrasonic height sensor with automatic vertical alignment compensation—measures from 60 cm to 220 cm without physical contact or manual adjustment
• Backlit LCD display (128 × 64 pixel, monochrome) showing height, weight, and BMI simultaneously in real time—no scrolling or secondary screen navigation required
• Anti-slip, textured weighing platform (420 × 360 mm) with stainless steel load cell assembly rated for 300 kg capacity and IPX2 ingress protection
• RS-232 serial interface supporting bidirectional communication with EMR/EHR systems, thermal printers, and hospital information systems (HIS); configurable baud rates (9600–115200 bps)
• Rechargeable Li-ion battery (7.4 V, 4400 mAh) providing up to 72 hours of continuous operation per charge; charging via micro-USB port with LED status indicator
• Integrated Kensington security slot and optional lockable caster brakes for secure placement in shared clinical spaces
• Multi-unit support: weight in kg, lb, oz; height in cm, ft/in; BMI calculated automatically using WHO-recommended formula (kg/m²)
• Auto-zero tracking and external calibration capability using certified test weights (100 kg class M1)

Sample Compatibility & Compliance

The MUW accommodates ambulatory adult and pediatric patients (ages ≥2 years) capable of standing unassisted for ≤5 seconds. It is not intended for use with non-ambulatory patients, neonates, or individuals requiring seated or wheelchair-based measurement. Device firmware adheres to GDPR-compliant data handling protocols: no local storage of PII (Personally Identifiable Information); all identifiers (e.g., patient ID, clinician code) are transmitted only via encrypted RS-232 handshake upon explicit user initiation. Regulatory certifications include UKCA marking (UK MDR 2002), CE marking under Directive 93/42/EEC (as amended), and conformity with BS EN ISO 20653:2013 for environmental protection ratings. Calibration documentation satisfies NHS England’s “Clinical Engineering Standards for Weighing Devices” (v4.1, 2022) and supports GLP audit trails when integrated with validated hospital middleware.

Software & Data Management

The MUW operates as a plug-and-play peripheral with no proprietary software installation required. RS-232 output follows NIST-traceable ASCII format (e.g., “H:172.3 W:68.4 B:23.1rn”) compatible with HL7 v2.5.1 ADT and ORU messages. Optional integration with third-party clinical software (e.g., Epic, Cerner, DXC Trizetto) is supported via standard COM port mapping and configurable delimiter settings. Firmware updates are performed offline using Adam’s certified DFU (Device Firmware Upgrade) utility, which logs version history, timestamp, and operator ID—meeting FDA 21 CFR Part 11 requirements for electronic records and signatures when deployed in U.S.-based GCP or GMP-regulated trials.

Applications

• Routine anthropometric assessment in general practice and community health centers
• Pre- and post-intervention monitoring in obesity management programs and diabetes clinics
• Baseline biometric capture during annual wellness visits (AWV) under U.S. Medicare guidelines
• Research-grade data collection for longitudinal studies requiring high inter-operator reproducibility (CV < 0.8% for weight, < 0.3% for height)
• Occupational health screening where rapid throughput and HIPAA/GDPR-aligned data transfer are mandatory

FAQ

Does the MUW require annual recalibration by an accredited metrology lab?
Yes—per ISO/IEC 17025:2017 and national metrological regulations, full verification against traceable standards is recommended every 12 months or after 10,000 weigh cycles, whichever occurs first.
Can the MUW integrate with Apple Health or Google Fit?
No—the device lacks Bluetooth or Wi-Fi connectivity and does not support consumer-grade health ecosystems. Integration is limited to certified clinical IT infrastructure via RS-232.
Is the ultrasonic height sensor affected by ambient temperature or air currents?
The transducer incorporates temperature-compensated time-of-flight algorithms and operates reliably within 10–40 °C and <70% RH; draft shielding is recommended in HVAC-intensive environments.
What is the warranty coverage for the MUW in North America?
Adam Instruments provides a 3-year limited warranty covering parts and labor for defects in materials and workmanship, excluding consumables, batteries, and damage from misuse or unauthorized modification.