[High simulation --- Dome shape and flashing LED light make it look very realistic. Fine workmanship and the working mode is exactly the same as a real monitor. Red LED light --- Internal red LED light keeps flashing once every 1 seconds after batteries are installed. Effective deterrent --- Excellent workmanship high degree of imitation! Very effective in deterring and deterring thieves or lawbreakers from approaching. Easy installation --- Cheap and effective way to your home. Installs quickly and easily to the ceiling or wall with the included screws. Wide range of applications --- Applicable to supermarkets hotels parking lots libraries offices warehouses marketplaces parks residential areas and etc.]