Rossmax Pulse Oximeter Probe - Adult - 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