Systems and methods of automatically operating dehumidifiers in response to dehumidifier operating conditions are disclosed herein. The TPMS includes a separate transmitter unit provided in each tire, where each transmitter unit transmits TPMS signals including an ID code identifying the tire and the pressure in the tire. In one embodiment, the microelectronic workpiece further includes a plurality of dies formed on the device side of the substrate, a dielectric layer over the dies, and a plurality of bond-pads on the dielectric layer. The first lens element is made of a sapphire glass or other material having a refractive index greater than 1.