RHT03 / DHT-22 Temperature / Humidity Sensor Housing

I have been using the DHT-22 temperature and humidity sensors
throughout the house for monitoring temp/humidity with an Arduino Mega. They're kind of awkward to place though. I discovered with a couple of snips with an exacto knife however, the DHT-22 fits quite nicely in a one port single gang wall plate, which in turn can be mounted to a single gang cut in box in the wall to protect connections.

Here's some photos of how it turned out.

Arduino Solar Sensor

I'm thinking about taking this cheap 1.2VDC solar powered garden light's solar cell and making something I can hook up to my Arduino mega to record how much sun I get where I'm at. In theory I should be able to monitor the voltage coming from the solar cell on an analog input pin of the arduino. I don't anticipate the cell ever producing the 5VDC limit on the Arduino, but maybe I should add a voltage regulator as a protection measure, say if the cell short circuits.

What to do with the voltage, albeit tiny current, generated from the solar cell though? I could charge a backup battery for the house's Arduino Mega.