- Complete LDR-Based Light Detection Kit - Fully Assembled & 100% Tested.
- Includes comprehensive documentation: circuit diagrams, PCB layouts, and testing guides.
- Step-by-step video tutorials on YouTube for easy understanding.
- https://www.youtube.com/watch?v=2Avy6w8KXbY
- Dedicated support: Mon-Sat, 11 AM - 6 PM via Smartxbrains@gmail.com.
- Fast delivery across India. Perfect for school projects, automation, and STEM learning.
Laser Alarm DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
₹1,025.00 Original price was: ₹1,025.00.₹699.00Current price is: ₹699.00. + GST
-
- Fully assembled Laser Alarm DIY Science Kit – 100% Tested for performance.
- Complete documentation: Circuit diagrams, PCB layouts, and testing guides included.
- Step-by-step YouTube videos for easy understanding of the kit.
- https://youtu.be/xmMoMzbbgk0?si=_-_P8JnNLSMfqEC3
- Get 100% technical support on working days (11 AM – 6 PM). Email: Smartxbrains@gmail.com
- Fastest delivery across India! Perfect for electronics projects, automation, and STEM learning.
This Laser Alarm DIY Science STEM KIT delivers reliable performance for various educational and electronics projects.
100 in stock
Abstract:
The Laser Alarm DIY Science STEM KIT is a practical and educational project designed for learning security systems and automation concepts. It is a simple laser-based alarm system that detects irregular activities using laser light and a light-dependent resistor (LDR). When the laser beam is interrupted, the circuit triggers a buzzer, alerting the user.
The primary component, LDR, senses the light variations caused by laser beam interruptions and adjusts its resistance to activate the alarm. This DIY kit demonstrates how laser-based security systems work, making it perfect for science enthusiasts, students, and hobbyists exploring electronics and STEM concepts.
Key Benefits:
- Educational Value: Enhances hands-on learning and understanding of basic electronics, automation, and security concepts.
- Practical Use: Can be used to demonstrate real-world laser security systems like tripwires in homes, banks, or offices.
- Reliable & Tested: Fully assembled and 100% tested for quality and performance.
- Easy to Use: Includes detailed circuit diagrams, PCB layouts, and testing documents for step-by-step guidance.
- Support Available: Technical support (11 AM to 9 PM) ensures a smooth experience for users.
How It Works:
The system relies on a laser pointer as the light source and an LDR as the sensor. When the laser light beam is disrupted, the resistance in the LDR changes, signaling the buzzer to produce sound. This makes the laser alarm an excellent standalone security project and a beginner-friendly automation experiment.
WARNING: Avoid direct eye exposure to laser light, as even low-powered lasers can be harmful.
Applications:
- Electronics projects and automation experiments
- STEM education and robotics learning
- DIY security system demonstrations
- Hands-on science experiments for students
Keywords:
- Laser Alarm DIY Science STEM KIT
- Assembled Laser Security System Kit
- DIY Laser Alarm Project Kit India
- Buy Laser Alarm Science Kit Online
- STEM Learning Electronics Project
7 reviews for Laser Alarm DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
You must be logged in to post a review.
We deliver all across India.
✅ Orders leave warehouse in 1–2 days.
✅ Delivery within 5–10 days after dispatch.
Related products
Fire Detection Alarm System DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
-
- Fire Detection Alarm System assembled kit, 100% Tested.
- Full documentation, including circuit diagrams, PCB layout, and testing documents.
- Videos available on YouTube for easy understanding.
- https://youtu.be/v3xl6-t9OYA?si=-fnPKeqq45WF4vkr
- 100% support on working days from 11 AM - 6 PM. Email: Smartxbrains@gmail.com.
- Fastest delivery all over India. Perfect for electronics projects, automation, and educational uses, ensuring reliability and performance.
Theft Alarm Using IR Sensor DIY Experimentsl Science Project Model STEM KIT (Assembled), 100% Tested
-
- Theft Alarm Using IR Sensor – Fully assembled, 100% tested kits.
- Includes full documentation with circuit diagrams, PCB layout, and testing documents.
- YouTube videos available for easy understanding.
- https://youtu.be/PM22ugMH5qg?si=NnmEJLpu6STxz4do
- 100% support available on working days from 11 AM to 6 PM via email (smartxbrains@gmail.com).
- Fastest delivery across India. Ideal for electronics projects, this Theft Alarm Using IR Sensor STEM Kit ensures reliability and performance.
Moisture base watering on/off water pump System DIY Experiments Science Project Model STEM KIT(Assembled), 100% Tested
-
- Moisture-based watering on/off water pump system – Complete assembled kit, 100% tested.
- Full documentation, including circuit diagrams, PCB layout, testing document, etc.
- Videos available on YouTube for easy understanding.
- https://youtu.be/FTUc5eaMeLs?si=mYYI2tvWb9AuLhBX
- 100% support on working days, 11 AM - 6 PM, Email: Smartxbrains@gmail.com.
- Fastest delivery all over India – Ideal for electronics projects, automation, and educational use.
Automatic Temperature Control Fan DIY Experiments Science Project Model STEM KIT (Assembled) – 100% Tested
-
- Automatic Temperature Control Fan complete assembled kit – 100% tested.
- Includes full documentation: circuit diagrams, PCB layout, and testing documents.
- YouTube videos available for easy understanding.
- https://www.youtube.com/watch?v=3-Kn_HD-W4I
- 100% support available on working days (11 AM - 6 PM). Email us: Smartxbrains@gmail.com.
- Fastest delivery across India. Ideal for electronics projects, automation, and educational uses, this kit ensures reliability and performance.
Automatic over temp detection and alert Ready DIY Experiments Science Project Model STEM KIT (Assembled), 100% Tested
- Automatic Over Temp Detection and Alert – Complete assembled kit, 100% tested.
- Full documentation, including circuit diagrams, PCB layout, and testing guide.
- YouTube videos available for easy assembly instructions.
- https://youtu.be/07QBYB69fVU?si=UAtohVuQwSKT3sJf
- 100% support on working days (11 AM - 6 PM). Email: smartxbrains@gmail.com.
- Fastest delivery across India. Ideal for electronics projects, automation, and STEM education.
LDR & Relay-Based Street Light Controlling DIY STEM KIT Science Project Model (Assembled), 100% Tested
- LDR & Relay-based Street Light Controlling – Complete assembled kit, 100% tested.
- Includes full documentation: Circuit diagrams, PCB layout, and testing documents.
- YouTube videos available for easy understanding.
- https://www.youtube.com/watch?v=2Avy6w8KXbY
- 100% support on working days (11 AM - 6 PM), email: Smartxbrains@gmail.com.
- Fastest delivery across India. Perfect for electronics projects and automation needs.
LDR Based Light Detection DIY Experiments Science Project Model STEM KIT Ready (Assembled), 100% Tested
LDR Based darkness Detection DIY Experiments Science Project Model STEM KIT Ready (Assembled), 100% Tested
- Complete LDR-Based Darkness Detection Kit - Ready Assembled and 100% Tested.
- Includes full documentation: circuit diagrams, PCB layouts, and testing guides.
- Step-by-step video tutorials available on YouTube for easy assembly and use.
- https://www.youtube.com/watch?v=2Avy6w8KXbY
- Dedicated support: Available Mon-Sat, 11 AM - 6 PM via Smartxbrains@gmail.com.
- Perfect for school projects, electronics experiments, and STEM learning. Fastest delivery across India.


















Komal (verified owner) –
Drone parts i ordered and found ok
Akshay (verified owner) –
Online best cost electronic components
Sneha (verified owner) –
Best Science project
Vivek (verified owner) –
Good service.
Sneha (verified owner) –
Best Science project
Rahul (verified owner) –
Good Stem kit
Harsh (verified owner) –
I got my project done with these components Great Support