PULSE OXIMETER PROBE

PROBLEM TO BE SOLVED: To improve mounting stability.SOLUTION: A pulse oximeter probe is a clip type pulse oxymeter probe having first and second arms configured to clip a subject's finger. Each of the first and second arms has a surface member made of resin material having elasticity as a surface layer coming into contact with the finger, and the first surface member disposed in the first arm, out of the surface members includes: a first recessed part extending in a longitudinal direction of the first and second arms; and a pair of first wall parts erected along the first recessed part at both right and left ends of the first recessed part. The pair of first wall parts are inclined to the first recessed part side.