Abstract: To date, no one has written a combined computer program or has built a hardware to detect the presence of an occupant in a car during extreme temperatures; presence of a pet or a child near a swimming pool, presence of an intruder near a house, and presence of a living object in a house during extreme temperatures. The purpose of this invention is to add to the existing body of invention a software program and a hardware that uses micro-controller (a motherboard or brain of a computer), temperature sensor, motion sensor, Internet service or connection, Bluetooth or Wi-Fi, security camera, infra-red sensor and other sensors, a power system (battery or wall plugin) and global positioning system (gps) to aid detect: 1. Presence of an occupant or a living object in a car during extreme temperatures 2. Presence of a child or a pet near a swimming pool 3. Presence of an intruder near a house 4. Presence of a living object in a house during extreme temperatures and 5.