The Marsden HM-110 is a portable soft infant measuring mat providing the supine length measurement required by WHO Child Growth Standards and RCPCH growth monitoring guidance for children under two years. Used alongside Class III Approved baby scales in community health visitor practice, GP baby clinics and health visitor assessment rooms, the HM-110 provides the length component of the weight-and-length data pair required for centile chart plotting without the fixed installation requirement of a dedicated infant measuring board.
Its lightweight, soft construction makes the HM-110 comfortable for the infant during measurement and practical for community practitioners to carry as part of their standard home visit equipment kit alongside a portable baby scale.
| Specification | Detail |
|---|---|
| Type | Soft measuring mat, supine length measurement |
| Patient Position | Supine (lying), as per WHO growth monitoring protocol |
| Cleaning | Easy-clean surface for between-patient decontamination |
| Portability | Lightweight for community home visit deployment |
| Clinical Use | WHO growth chart centile plotting, faltering growth assessment |
| Compatible Scales | M-300, M-310, M-320, M-400 series and all portable baby scales |
WHO Child Growth Standards and RCPCH UK growth chart guidance require supine length measurement for all children under two years, as opposed to standing height measurement which is appropriate only for children who can stand independently and cooperate with the measurement process. The HM-110 supports this clinical requirement in community settings where a wall-mounted or rigid measuring board is unavailable, providing a portable alternative that maintains the supine measurement protocol required for valid centile chart plotting. Accurate length data is clinically significant in faltering growth assessment: NICE guideline NG75 (Faltering Growth) requires length-for-age centile tracking as part of the monitoring package for infants identified as falling across centile lines on weight-for-age tracking.
Why must infant length be measured in the supine position rather than standing?
Children under two years cannot reliably cooperate with upright standing height measurement, and the WHO growth charts for 0-2 years are calibrated on supine length measurements, not standing height. Supine length and standing height differ by approximately 0.5-1cm even in older children, and mixing measurement methods introduces systematic error into centile tracking. Using standing height data on WHO 0-2 year charts, or measuring length in a non-standard position, produces clinically misleading centile results and may result in inappropriate referrals or missed faltering growth presentations.
Can the HM-110 be used as a standalone measurement tool or does it need a dedicated baby scale?
The HM-110 provides length measurement only and is used alongside a baby scale (typically M-300, M-320 or M-400 series) to obtain the complete weight-and-length data set required for growth chart plotting. It does not provide weight readings. For community practitioners who need both weight and length from a single portable unit, the M-400-80D with its integrated digital height rod is the alternative that replaces both the standard baby scale and a separate length measurement tool in the community kit.
Part of our Class III approved Medical Scales and Measuring range. Patient height measurers provide accurate standing and seated height measurement for clinical assessment in care homes and NHS environments.