ROSSMAX Pulse Oximeter Probe - Pediatric - for SA300BT/SA310BT/SA120

Features:
Measure and display reliable SpO2 value and pulse rate with High-brightness LED design.

Operation:
• Press handler to open up the probe.
  Put one finger in the middle of probe and release the handler.
  If one finger cannot fit-in, switch to another one.
  You may pull up the probe to enlarge the pace for various fingers.
• Connect to SpO2 device to start measure