发射电路: 接收电路:...
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遥控发射电路: 遥控接收电路:...
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The Keypad must be the kind with a common terminal and a separate connection for each key. On a 12-key pad, look for 13 terminals. The matrix type with 7 terminals will NOT do. The Alarm is set by pressing a single key. Choose the key you w...
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发射电路: 接收电路:...
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This is a complete alarm system with 5 independent zones suitable for a small office or home environment. It uses just 3 CMOS IC's and features a timed entry / exit zone, 4 immediate zones and a panic button. There are indicators for each z...
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RD9481 YN9101 HL-169B 9013 CD4017 CD4069 MK5087 T630 CD4066 本电路采用微波传感模块RD9481作为探头，使用DTMF(双音多频)编码译码，由长波收发组件T630／T631进行报警信号和地址的传送，可显示报警地...
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This switch will suit the Modular Burglar Alarm circuit. However, it also has other applications. The Keypad must be the kind with a common terminal and a separate connection for each key. On a 12-key pad, look for 13 terminals. The matrix...
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微波语言防盗报警器适合在家庭、商店、仓库、果园等场所使用。只要有人进入报警器的警戒范围，它便会发出“抓贼呀”的声音。为防止报警器被人为破坏，在电路中设有断线 报警和...
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