Review on Upgrade Your Security with Crimestopper SPLCD52 2-Way Paging Replacement FM-FM LCD Transmitter by William Wiley

I'm here to the '8th' other reviewer here and saying the same thing. This is the SP-502, exactly the same as the original and works perfectly. Funny story/advice on why I should have ordered this. Don't put your keys in your pocket and don't ride the roller coaster. :) The amazing thing is that the SP-502 was still working after being dropped, except the LCD screen was shattered. Also kudos to the Stereophore they sent me quickly and in the original Crimestopper packaging. I am 100% satisfied!