• Advanced micro-computer manufacturing technology for automatic body sensing
• High sensitivity and interference prevention for effective monitoring
• Suitable for various environments including offices, homes, shops, and factories
• Effective alarming detecting distance: 5m-10m
• Wide effective angle of 110 degrees
• Powerful alarming sound depth: 75-95 decibels
• Can be powered by 3 x AAA batteries or DC 9V power supply

Enhance security and convenience with this intelligent greeting warning doorbell. With a monitoring range of 10m, this motion sensor alarm is perfect for your home or business. It's designed to provide a high-performance, energy-saving solution, suitable for a variety of environments. The alarm's high sensitivity and interference prevention ensure effective monitoring without inadvertent triggering. Bring unexpected joy and a sense of security to your surroundings with this innovative welcome alarm.