最近,美国有一种三保险安全警报锁面世,它通过三种方式来保证门窗的安全:一个可以发出90dB 声响的报警器,一个发出闪亮的警示灯和一个可以调节长度的棍式锁。这种锁的核心是一个感应装置,它装在由电池控制的棍式锁内,夜间一旦发觉门窗有移动,就能自动锁上并发出警报,比一般门窗安全多了。 Recently, in the United States, a three-safety safety alarm lock has been introduced. It guarantees the security of doors and windows in three ways: an alarm that can emit 90dB sound, a warning light that emits a flash, and a stick lock that can adjust the length. At the heart of this lock is a sensing device, which is housed in a battery-operated stick-type lock. Once it is detected that the door and window are moving at night, it can automatically lock and send out an alarm, which is much safer than normal doors and windows.