Weight controller: 7.1 oz (200 g), Sensor mat: 24.3 oz (700 g), Comments: Yes It detects and reports when it comes to the bed. It is placed under the mattress, so it reduces discomfort. You can set the detection timer to prevent accidental movement caused by tossing and turning. Materials and Materials - Standard Details: Controller dimensions: Width 4.3 inches (110 mm) x Height 5.5 inches (140 mm) x Thickness 1.8 inches (45 mm); Sensor mat dimensions: Width 8.7 inches (220 mm) x Height 31.5 inches (800 mm) x Thickness 0.2 inches (5 mm); Power supply: AC adapter (DC 6 mm); Detection method: When the mat is steped.