Vender alarma de parada de puerta súper fuerte antirrobo sistema de seguridad móvil 120db 3 niveles de sensibilidad al mejor precio

Feature: 1. Wedge-shaped design alarm stops intruder from opening door. 2. Easy to operate, just put it under the door. 3. Adjustable sensitivity switch prevents tampering. 4. Features 3 sensitivity levels and extra-loud alarm. 5. 120dB high-pitched continuous siren when it is enabled. Specifications: Color: Silver and black (as shown in the pictures). Material: Stainless steel cover, plastic body, damping rubber bottom. Working modes: Vibration sensor. Volumn of the alarm: 120dB. Three sensitivity: High, medium, low. Battery: 1*9V battery. Size: 14*4.5*4cm Include: 1 x Door Stop Alarm(battery is not included)