Described is an animal traininglocating device including an animal training feature, an animal locating feature, and a transmitting device for communicating with the animal training feature and the animal locating feature independently. In one embodiment, a microfabricated device comprises: a base layer; a microfabricated component; and a non-sacrificial aerogel layer in contact with the microfabricated component and supporting the microfabricated thermal component on the base layer. According to an aspect, the interrogator an antenna and a unique ASIC.