Masimo LNCS Neo-L SpO2 Neonatal/Adult Adhesive Sensor Ref 1862-9 pin 3 ft OEM - 1 Unit Y

If you're looking for replacement sensors for a Masimo machine, this is the one. Our insurance only allows us 2 of these a month, so I was happy to find them available here. They're somewhat expensive, but worth it for a preemie that needs to be monitored at home.