The Marsden M-530 is a specialist bariatric floor scale designed to address the specific clinical and practical challenges of weighing high-BMI patients in NHS bariatric pathways, weight management services and surgical pre-assessment units. Available in 300kg and 500kg capacity options, the M-530 combines Class III accuracy with an ultra-low 50mm platform profile that minimises the step height barrier for patients with limited mobility, and a remote indicator that supports sensitive, dignity-preserving weight disclosure in line with NICE obesity pathway guidance.
The 500kg variant covers the full practical capacity range required by specialist bariatric surgical services where pre-operative weight at high BMI is a routine clinical requirement.
| Specification | Detail |
|---|---|
| Capacity Options | 300kg or 500kg |
| Graduations | 300kg: 50g below 150kg, 100g above 150kg; 500kg: 100g below 300kg, 200g above 300kg |
| Approval | Class III Approved (NAWI Directive) |
| Platform Profile | Ultra-low, 50mm height |
| Display | Remote indicator for discreet reading |
| Connectivity | Optional Bluetooth, TP-2100 printer |
Class III approval under the NAWI Directive confirms the M-530 is authorised for patient monitoring, diagnosis and treatment in NHS and regulated settings. The 500kg capacity variant directly addresses the NHS England Bariatric Care Pathway requirement for accurate weight measurement at all BMI levels, including those in the super-obese category where standard 300kg floor scales are insufficient. The remote indicator supports NICE Obesity Pathway (CG43) guidance on managing weight disclosure sensitively, and optional EPR connectivity supports NHS Digital requirements for longitudinal bariatric weight monitoring data capture.
Why is a 500kg capacity option clinically necessary rather than just specifying a 300kg scale?
NHS bariatric surgical pathways include patients whose weight at referral may significantly exceed 300kg, particularly at super-obese BMI levels where body weight can reach 400-500kg. A standard 300kg scale cannot safely or accurately weigh these patients, creating a clinical gap in the pre-operative assessment pathway. The M-530 at 500kg provides the capacity headroom required for the full range of bariatric referrals, ensuring accurate weight capture for anaesthetic risk assessment, surgical planning and post-operative monitoring without requiring separate specialist equipment.
What is the clinical significance of the M-530's 50mm platform profile?
A 50mm platform height is significantly lower than most bariatric floor scales, which commonly range from 70mm to 100mm. For patients with limited lower limb strength, joint pain or balance difficulties, even this difference in step height reduces the fall risk during platform boarding, which is a real clinical and patient safety concern in bariatric outpatient settings. The lower profile also reduces the lateral lean correction required for patients stepping onto the scale, improving the accuracy of the static weight reading captured when the patient is fully settled on the platform.
Part of our Class III approved Medical Scales and Measuring range. Medical floor scales provide accurate standing weight measurement for care home residents and NHS patients.