Rossmax Pulse Oximeter Tube Probe for SA300BT/SA310BT/SA120 ankle support Contoured arch pad to help

Contoured arch pad to help reduce pressure

If symptoms persist

Perfect for athletes

3D Weaving technology with light-weight materials

Shoes where insoles don't fit

Rossmax Pulse Oximeter Tube Probe for SA300BT/SA310BT/SA120 ankle support Contoured arch pad to helpFeatures: 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