The model 8054 is a High Security Encrypted "Rotating Code" RF Receiver that is designed for stand alone applications. The encrypted "Rotating Code" programming in this receiver and the companion MicroPlus transmitters prevent copied transmitter codes from being used again to access a controlled entry point. The 8054 receiver includes 10 time zones (eight programmable), a history buffer that can store up to 2800 transactions in its memory. A serial printer can be connected to print the stored transactions or the receiver can be programmed to print transactions in real time mode.