photoelectric proimity senor and blinking Led stobe

I'm trying to assemble a relatively simple project but I am not well versed in the electronics field. A sensor like (sm312cv) in conjunction with a light pole with strobe/flashing led light. The sensor will detect when the roll paper decreases to a set level which will trip the flashing light and warn me when this is reached. It will need to have its own power source plug which will be used in a typical home outlet with an inline on/off switch. Not sure which board will work for my application with this sensor. Any help would be appreciated to make this come together. I have not purchased any parts thus far.