Dynarex Finger Pulse Oximeter

Light & Compact, Clinically Tested for Accuracy, 1 Button Operation,
Withstood drop testing for durability ,Moisture Proof, Pefect spot Checks,
Designed for Pediatric & Adults ,Size 2 1/4" L x 1 5/6" H x 1 2/16" D
Requires 2 AAA Batteries