Assembly

The sensor has two vent holes that must be kept clean during assembly: protect it with tape.
Hand soldering is required: the LCD module will not tolerate temperatures greater than 70C.
Do not use a wash (immersion or stream) to clean after assembly. Degreasers could damage the switches, LCD, or sensor. Use spot cleaning only.
Do not bake in an oven after cleaning.
The PCB silkscreen can be used as a template to mark the case for the LCD & button cut-outs. A template is also provided for the button labels.
The button caps protrude too far beyond the case. I removed them and covered the LCD & button cut-outs with laminate to seal the unit. The button bases are even with the case surface and operate reasonably well, but you could mount the switches ~ 0.5-1mm off the PCB for better tactile feedback.
If you seal the face of the unit drill a small hole (#52 bit, 1.613mm or 1/16") on the back of the case near the corner closest to the sensor to ensure that it can sense ambient pressure. A hole that small will keep out most droplet moisture, but you could tack a piece of felt or other porous desicant for added protection.

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