Marsden M-225 Chair Scale, Class III Approved, 250kg Capacity, BMI & BSA Calculation
- Class III Approved, 250kg capacity with 100g graduations, meeting NAWI Directive requirements for clinical monitoring, diagnosis and treatment in hospitals, GP practices and CQC-regulated care homes at an entry-level price point.
- BMI and Body Surface Area (BSA) calculation as standard, supporting NICE drug dosing guidelines for oncology, renal and obesity pathway patients where BSA-based chemotherapy dosing and BMI monitoring are clinical requirements.
- Four castors with two brakes, hinged footrests and armrests enable easy patient transfer, secure positioning during weighing and single-person manoeuvring across wards, care home corridors and clinical rooms.
- Up to 180 hours on 6xAA batteries or mains power, with Hold function, five-button keypad and USB Type B data port for weight record transfer, across hospitals, GP practices and residential care settings.
Marsden M-225: Entry-Level Class III Approved Chair Scale for Hospitals and Care Homes
The Marsden M-225 is an entry-level Class III Approved chair weighing scale designed for clinical environments requiring accurate, repeatable patient weight measurements without the premium cost of the M-210. With a 250kg capacity, 100g precision and BMI and Body Surface Area (BSA) calculation as standard, the M-225 covers the core clinical functions required for patient monitoring in NHS wards, GP practices and CQC-regulated care homes, including medication dosing support for oncology, renal and weight management pathways.
Its compact footprint, four-castor mobility and hinged access design make it practical for standard clinical rooms and care home corridors, with battery life of up to 180 hours eliminating the need for fixed power in ward environments.
Product Specifications
| Specification | Detail |
|---|---|
| Capacity | 250kg |
| Graduations | 100g |
| Approval | Class III Approved (NAWI Directive) |
| Dimensions | 880 x 600 x 1010mm |
| Scale Weight | 18kg |
| Battery Life | Up to 180 hours (6 x AA batteries), mains adaptor supplied |
| Key Functions | BMI, BSA, Hold, Tare |
| Data Port | USB Type B for weight data transfer |
| Warranty | 8 years |
Regulatory and Clinical Compliance
Class III approval under the NAWI Directive confirms the M-225 is authorised for patient monitoring, diagnosis and treatment in NHS and regulated settings. BSA calculation is a clinically significant standard inclusion: NHS oncology protocols for many chemotherapy regimens dose by BSA rather than BMI, and care homes conducting CQC-required nutritional assessments benefit from BSA as an additional precision marker. The Hold function ensures stable readings for patients with involuntary movement, supporting CQC Regulation 12 requirements for accurate clinical data capture.
Frequently Asked Questions
What is the difference between the M-225 and M-210, and which should be specified?
The M-225 is the entry-level model with 100g graduations and a five-button keypad, while the M-210 has dual-interval graduations of 50g below 150kg, making it more precise in the lower weight range. The M-225 suits general ward and care home environments where 100g precision is clinically sufficient. The M-210 is preferred where greater accuracy is needed, such as in paediatric-adjacent wards, dialysis units or weight management clinics where small weight changes are clinically significant.
Does the M-225 calculate Body Surface Area (BSA) automatically?
Yes. BSA is calculated automatically using the DuBois formula when height is entered via the keypad and weight is captured on the scale. This is clinically relevant for NHS oncology settings where BSA is the standard metric for calculating chemotherapy dosing, and is an advantage of the M-225 over basic chair weighing solutions that provide weight and BMI only. BSA is displayed directly on the indicator without additional calculation steps.
Part of our Class III approved Medical Scales and Measuring range. Medical chair scales enable safe, accurate weighing for patients with limited mobility in care homes and NHS settings.
NCL-M225
3 other products in the same category:
- Class III Approved, 250kg capacity with 100g graduations, meeting NAWI Directive requirements for clinical monitoring, diagnosis and treatment in hospitals, GP practices and CQC-regulated care homes at an entry-level price point.
- BMI and Body Surface Area (BSA) calculation as standard, supporting NICE drug dosing guidelines for oncology, renal and obesity pathway patients where BSA-based chemotherapy dosing and BMI monitoring are clinical requirements.
- Four castors with two brakes, hinged footrests and armrests enable easy patient transfer, secure positioning during weighing and single-person manoeuvring across wards, care home corridors and clinical rooms.
- Up to 180 hours on 6xAA batteries or mains power, with Hold function, five-button keypad and USB Type B data port for weight record transfer, across hospitals, GP practices and residential care settings.