Abstract: A sensor and a sensing system includes a chain of sensors, wherein each sensor comprises an input control port, an output control port, a power interface and an output interface, and is configured such that, when the sensor is powered over the power interface, an enable signal at the input control port triggers the sensor for executing a sequence which comprises measuring a physical property, and subsequently transmitting an enable signal over the output control port. The output control port of an earlier sensor is connected with the input control port of a next sensor. A first sensor is configured for repeating the sequence with a predefined period.