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For those of you who don't have time to read the user manual, here are some notes on how the RTPB3-12 Sensor works:

It works on a range of 3 ~ 5.5 Volts

Currently, there are three wires available, the user manual specifies that:

Blue/White = Common (GND) (Probably white on ours ~ needs confirmation)

Blue = 1-wire Data Signal

Orange = Ext. Power (VDD)