Insulation spacer devices, methods and related construction techniques are provided. The squeeze plate may move relative to the pressure sensor module to apply pressure to a flexible container between the squeeze plate and the pressure sensor module. The U-shaped bracket includes attachment means that permit vertical and angular adjustment of the lamp assembly relative to the axial center of the housing. A rotor is connected to the hub and supports a compressor section. The laser diode receives the polarization-adjusted information-bearing signal and generates a converted information-bearing signal by transferring the information of the polarization-adjusted information-bearing signal from the first wavelength to the second wavelength.