Turn on the switch , you will hear the sound DU. That means the alarm is coming into alarming situation. After 15 seconds ,

when the alarm is vibrated, delay 5 seconds , vibrate the alarm again , it will give an alarm and keep alarm with serial movement or vibration. Each alarm will last 10 seconds.

ALARM SHELL

Material:ABS, PRODUCT SPECIFICATION: 88X55X24MM

PCB

Material: metal+ plastic

BUZZER

Material: metal

SWITCH

Material : plastic+metal

WIRE

Material : cooper + plastic

BATTERY (3 PCS 7 # )

SCREWS ( 6PCS )

Material : metal  

DOUBLE SIDES GLUE

Material : PVC