Facelake ® Fl400 Pulse Oximeter Fingertip With Carrying Case, Batteries, Lanyard, And Warranty (Blue)

FL400 Pulse Oximeter Fingertip with Carrying Case. Color: Blue. The FL400 registers a constant reading in several seconds (24sec. for the most accuracy) and is able to provide quick information regarding your blood oxygen levels.. The FL400 new and updated technology allows reading to be quick precise.