For monitoring the system of the physiological property of user, method and apparatus include wearable monitoring device, the wearable monitoring device includes one or more LED for being configured as shining to the skin histology of user and two or more sensors for being laterally arranged of long axis of the limbs along user. Each sensor based on from against or adjacent sensor the intensity generation signal of the received light in position that passes through of the pulse wave from users heartbeat. Lateral distance of the processor based on the signal generated from each sensor and therebetween calculates one or more physiological properties of user, such as blood pressure or pressure.
