120db door stop alarm Security System Home Wedge Shaped Stopper Alert Security System Door Stop Alarm Block Blocking System $ 8.84 Product information Color: silver and black Material: stainless steel cover Working mode: vibration sensor Alarm volume: 120dB Three kinds of sensitivity: high, medium and low Battery: 1 * 9V battery Size: 14 * 4.5 * 3.5cm Net weight: 94g
