Abstract: A MEMS device includes a first MEMS sensor associated with a first spatial plane and a second MEMS sensor is associated with a spatial second plane not co-planar with the first spatial plane, wherein the first MEMS sensor is configured to provide a first interrupt and a first data in response to a physical perturbation, wherein the second MEMS sensor is configured to provide a second interrupt and second data in response to the physical perturbation, and a controller configured to receive the first interrupt at a first time and the second interrupt at a second time different from the first time, wherein the controller is configured to determine a latency between the first time and the second time, and wherein the controller is configured to determine motion data in response to the first data, to the second data, and to the latency.

Abstract: A monitoring device includes a male portion including a housing with a top on a first ear side, a first needle and a shorter second needle for piercing the ear, electronic components including a battery, processor and temperature sensor, a thermally conductive ring on the first ear side coupled to the temperature sensor, a female portion including a housing with a bottom surface on a second ear side, a first and second openings in the housing, a first chamber for physically selectively retaining and releasing the first needle, and a second chamber for inhibiting rotation of the male portion relative to the female portion, when the first needle is physically retained by the first chamber.