tiiwee X3 Home Alarm System Wireless Kit - Complete DIY Alarm System with X3 siren, 2 Window Door Sensors - Window Alarm Door Alarm - Secured by 4-digit PIN code - 2 Year Warranty

It is an excellent device. Easy to install. It sound is louder than 120 db. A great thank to the seller.

Excellent little product, absolutely no need for full alarm system

Works well