Security and Alarm Circuits (02)

Circuit Collection: Alarm, Sensors, Detector, Proximity, Door, Lock, Codelock, Moisture, Fridge Ultrasonic system, Toxic Gas, Water, Temperature, Silent Alarm, PIR, Motion detector, Frost, Emergency, Combination lock, Eddy current, Home, Security, Burglar Alarm, Water Activated, Water level, Perimeter monitor, Surveillance

About Project Links

• Enhanced 4 Digit Alarm Keypad
• RF Alarm
• Single Zone Alarm
• Water Activated Alarm
• Water level alarm
• Perimeter monitor
• Digital combination lock
• Alarm control keypad
• Almost Ultrasonic Motion Sensor
• Touch activated alarm system
• Combination Lock (PIC16F84)
• Low power RFID transponder *
• Amplified ear for surveillance