Now, let’s see what you need for each index measurement.

Index	What is needed
Weight-for-height/length	Scale, height/length board, weight-for-height/length reference table
Weight-for-age	Age, scale, weight-for-age chart or reference table
Height/length-for-age	Age, height/length board, height/length-for-age chart or reference table
Mid-upper arm circumference	Tape