Remington861

Thanks for the link. Unfortunately I already have that schematic & info but it doesn't help me get the specs on the PCRC-55. I've even tried to contact the company but can't find any way to do so. Phys-Chem Corporation seems to have disappeared. I presume that they have closed down. That's why I'm having such a difficult time finding a datasheet. In case I can't locate it, does anyone know a good replacement for it?

I'm doing a college project & am trying to locate a datasheet for the PCRC-55 IC. I have an easy schematic to complete the project but it requires that sensor. I have tried doing general searches & al I can find is the manufacturer but no contact info. Can anyone help me locate this info?