Abstract: A sensor may include a housing configured to couple to a machine; at least one processor within the housing; a battery within the housing; a communication adapter within the housing and coupled to the at least one processor; and a measurement device within the housing and coupled to the at least one processor and the battery. The communication adapter may be configured to wirelessly connect to a communication network. The measurement device may be configured to: obtain measurements of a physical characteristic of the machine to which the housing is coupled and transmit the measurements via the communication adapter, and automatically switch between a first measurement mode comprising a first sampling rate and a second measurement mode comprising a second sampling rate, different from the first sampling rate, without human intervention.