Wearable heart rate sensor USB receiver RRD-1 1 unit

Customers who have purchased the wearable heart rate sensor WHS-1 standard set should purchase this when adding a receiver (RRD-1). Up to 10 WHS-1 units can be connected to one receiver (RRD-1). (*1) (*2) (*3) (*1) For example, if you want to measure 11 or more wearable heart rate sensors WHS-1 simultaneously in wireless mode, you will need at least two RRD-1 receivers. Also, only one RRD-1 can be used on one computer, so if you add more RRD-1s you will also need to add more computers. (*2) When connecting a currently used WHS-1 to a new RRD-1, wireless pairing is required. (*3) By law, this product cannot be used on airplanes or with its wireless functions outside of Japan. External dimensions: Height 21.5mm x Width 64.5mm x Thickness 9.0mm Mass: 7g Wireless: 2.4GHz band advanced low-power data communication system, range: approx. 20m (straight line)