Feedback from clinicians and consultants has encouraged us to design a new portable infantometer that gives users more accuracy and less chance for error. Graduation increments are now in 1/8 inch (~0.3cm) to allow a finite reading.
See a comparison of the Hopkins Measure Mat II against competitors:Comparison Chart
Our office has one of these but we also have satellite clinics. These mats are easy to use and easy to store, they roll up into a small pouch. There is some storage at our clinics so 4 more were purchased for each of those sites, we can leave them there and they are now readily available for accurate measurement of infants we see.
I really like it because is cheaper than other similar products but offers a great quality with instructions in many languages and a nice design