SENSOR DEVICE

Disclosed is a sensor device (100) wherein power can be supplied to powera sensor unit (101), a wireless communication device (102), and a control IC (105) by performing switching powerbetween a path for supplying power from a direct current power supply (103) via a DC converter (104) and a path for directly supplying power from the direct current power supply (103). The power supply path switchingpower is performed by determining sensor measurement start conditions on the basis of the operation status of the sensor unit (101) and the wireless communication device (102).