How to make simple laser alarm system using relay at home (Hindi/urdu)

Hello everyone, In this video I will explain show you how you can make a simple laser system alarm using ldr relay......this is very easy simple to make.....also this is my first video In hindi......

• #تحصیلات_و_یادگیری
• #laser_control_sequrity_system
• #laser_control_alarm
• #thief_alarm
• #how_to_make_laser_system
• #how_to_bro