The present invention is a system and method for reporting an emergency situation to a called party a using a wireless device. The preferred fluorescent protein sensors are variants of the green fluorescent protein from Aequorea victoria. A stop member is secured adjacent a second end of the support arm member with a portion of the arm member extending beyond the stop member. An input protection circuit is connected between the signal pad and the internal circuit and is connected to the round power supply wiring through a protection circuit power supply wiring. The invention further relates to animal and cellular systems for the study of AD, MCI, and related disorders, and the identification of reagents useful in treating amyloidosis.