财产被盗是让人心疼的事情。应对这样的事情,关键是防患于未然,提高防盗意识,加强防盗措施。要研究防盗器材,首先要了解窃贼。夜晚小偷最怕听到什么声音?相信很多人都会说是警笛。其实,狗叫对于他们的威慑丝毫不亚于警笛!请看题图,这款防盗报警器通过一个可伸缩的支撑杆与门相连。防盗锁开启之后,窃贼就要 Property theft is a distressing thing. Deal with such a thing, the key is to take preventive measures to improve awareness of anti-theft, anti-theft measures to strengthen. To study anti-theft devices, we must first understand thieves. What is the voice of the night thief most afraid to hear? I believe many people will say is a siren. In fact, the dog calls for their deterrence as much as the siren! See the title map, this burglar alarm with a retractable support rod connected to the door. After the security lock is turned on, the thief needs it