▎ 摘　　要

NOVELTY - Automatic detection device and system of the utility model relates to a graphene-based composite material, the device comprising: a detection device shell, a display screen, a graphene sensor, a ventilation hole, a detection chip; the detecting chip is set on the detecting device shell, at the same time, the detection chip is further connected with the graphene sensor; the graphene sensor is arranged on the bottom of the detection device shell; the vent hole is set on the bottom of the graphene sensor; said display screen is set on the outer surface of the detecting device shell; for displaying the graphene sensor to collect data. it also claims a system, the system comprises an internet service platform and a mobile terminal. The utility model does not need manual operation measuring, automatically measuring the volatile gas, the measuring sensitivity is stronger, which greatly increases the detecting efficiency.