Constraints and Criteria
Constraints:
Constraints:
-Low cost
-Low cost
-Rechargeable
-Rechargeable
-Reusable, no disposable parts
-Reusable, no disposable parts
-Safe
-Safe
-Culturally acceptable
-Culturally acceptable
-Easily disinfected
-Easily disinfected
Criteria:
Criteria:
-Fits children 3-15 kg
-Fits children 3-15 kg
-Report accurate heart rate with an error of no more than +/- 5 beats per minute
-Report accurate heart rate with an error of no more than +/- 5 beats per minute
-Reports accurate respiratory rate with an error of no more than +/- 5 breathes per minute
-Reports accurate respiratory rate with an error of no more than +/- 5 breathes per minute
-Reports accurate body temperature with an error of no more than +/- 0.2 degrees Celsius
-Reports accurate body temperature with an error of no more than +/- 0.2 degrees Celsius
Photos courtesy of Amber Baden-Lopes and John Harris