Rain Alarm Project Model (Large Size)

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Original price was: 1,299.00₹.Current price is: 599.00₹.

Rain Alarm Project Model provides hands-on learning about rainfall detection and alarm systems, featuring components like a rain sensor, 555 Timer IC, LED, and buzzer. Ideal for educational use, it includes all necessary parts for easy assembly and practical demonstration.

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  • 100% working. Tested by S.R. Robotics.
  • Project Guide Included
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Rain Alarm Working Model, an innovative project designed to detect rainfall and alert users with both visual and audible signals. This includes a rain sensor, 555 Timer IC, VTR switch, 5V voltage regulator, 9V battery, LED, resistor, and buzzer, providing a practical and engaging way to understand weather detection and alarm systems. Ideal for students, educators, and hobbyists, this model offers hands-on experience with electronics and sensor technology.

Key Features:

  • Rain Detection: Alerts users to the presence of rainfall with visual and audible signals.
  • Educational Tool: Perfect for teaching principles of electronics, sensors, and alarm systems.
  • Complete Kit: Includes all necessary components for easy assembly and demonstration.
  • Hands-On Learning: Provides practical experience with circuit design and weather detection.
  • Compact Design: Easy to set up and use for various educational and DIY projects.

Components Used:

  • Rain Sensor: Detects the presence of rainfall.
  • 555 Timer IC with IC Base: Generates timing signals for the alarm system.
  • VTR Switch: Controls the activation and deactivation of the alarm.
  • 5V Voltage Regulator: Maintains a stable voltage for reliable operation.
  • 9V Battery: Power source for the circuit.
  • Battery Cap: Secures the battery connection.
  • LED: Provides visual indication of rainfall detection.
  • Resistor: Limits current flow in the circuit.
  • Buzzer: Produces audible alarm signals.


  • The rain sensor detects rainfall and changes its electrical resistance.
  • The 555 Timer IC processes the signal from the rain sensor and generates a timing pulse.
  • The VTR switch controls the activation of the alarm system based on the signal from the 555 Timer IC.
  • The 5V voltage regulator ensures a stable voltage supply to the circuit components.
  • The 9V battery powers the circuit, providing energy for the sensor, 555 Timer IC, LED, and buzzer.
  • When rainfall is detected, the LED lights up to provide a visual indication, and the buzzer sounds to provide an audible alarm.
  • The resistor controls the current flow to protect the components from damage.


  • Educational Demonstrations: Ideal for classrooms to teach weather detection and alarm systems.
  • Student Projects: Suitable for science fairs and practical electronics assignments.
  • DIY Enthusiasts: Great for hobbyists exploring sensor technology and circuit design.
  • Home Automation: Can be integrated into home systems for weather monitoring.
  • Prototyping: Useful for developing and testing new ideas in weather detection and alarms.