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Top rated products
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Mini Smart Robot Chassis Robot Kit With Speed Encoder
₹375.00Original price was: ₹375.00.₹354.00Current price is: ₹354.00. -
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Bamboo Lab A1 3D Printing

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Laser Security Alarm System – Paper Circuit Project
₹299.00 Original price was: ₹299.00.₹199.00Current price is: ₹199.00.
STOCK: Available on Backorder
Quick Review:
- 100% Working || Hand Made || 100% Support
- Tutorial: Video tutorial is available on YouTube.
- Components: One set with its components & wires in running condition.
- Documentation: Description, Component list, and Circuit diagram.
- Power Supply: No battery included, Includes 9 Volt Battery cap only.
Shipping: Usually delivered in 3-7 days.
Brand New || Best Quality || Skype and Video Support Available.
Need in Bulk Quantity? Let’s Talk!
Availability:

Laser Security Alarm System Science Hobby Project
Abstract: The Laser Security Alarm System is an efficient and low-cost electronic security solution designed to detect unauthorized access by using a laser beam and a light-dependent sensor (LDR or photodiode). In this system, a continuous laser beam is directed toward a sensor. When an intruder crosses the path and interrupts the beam, the system instantly triggers an alarm, alerting the user to possible intrusion. This project provides high accuracy, fast response, and can be used to secure doors, windows, corridors, and restricted zones. It demonstrates the practical use of optical sensing technology in security applications and offers a reliable method for enhancing safety in homes, offices, shops, and sensitive areas.
Package Includes:
- 1 Piece –Fire Detection Alarm Using an IR Sensor (Working Project Without Battery)
Note:
- Project Image only Illustration Purpose. The project may be the same or maybe an improved Version.
- We only provide batteries when students pick up their projects from our lab. Batteries aren’t included in shipped orders because our shipping partner doesn’t allow them.
| Weight | 200 g |
|---|---|
| Dimensions | 20 × 15 × 5 mm |
| Options | In-Series Cell Holder, In-Parallel Cell Holder |
Shipping
We strive to ensure that your orders reach every corner of India efficiently and reliably. To achieve this, we partner with some of the most trusted courier services in the country, including E-Kart, Amazon Surface, Delhivery, DTDC, Blue Dart, XpressBees, Ecom Express, and India Speed Post—especially for rural areas, based on the most suitable courier partner for each customer’s location.
For interior or remote regions not serviced by private couriers, we rely on India Post to ensure complete coverage.
We make every effort to dispatch orders on the same day they are placed or within 24 hours of receiving the order. Orders placed before 1 PM (IST) are typically shipped the same day, while those placed after 1 PM are scheduled for shipment the next working day.
This level of commitment applies throughout the week, including weekdays, and often extends to weekends and public holidays to serve our customers better.
We also offer local self-pickup options for customers in nearby areas—available on weekdays and partially available on weekends.
Warranty
This item is covered by a 7-day limited warranty from the date of delivery, applicable only to manufacturing defects. This warranty is provided solely to protect customers against any such defects. In the unlikely event of an issue, replacement or reimbursement will be offered after a complete inspection and confirmation of the defect.
What voids the warranty?
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Note: For your peace of mind, all electronic items are imported and, as such, do not come with a manufacturer’s warranty or guarantee. However, we take great care to ensure product quality—each item is thoroughly inspected before dispatch.
Other Info
- Country of origin: India
- Packer/ Importer: Ercoms Robotics Lab
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Fire Detection Alarm Using IR Sensor – Paper Circuit Project
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OR Gate Implementation using Diode – Paper Circuit Project
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Laser Based Home Security system– Science Hobby Project
₹1,450.00Original price was: ₹1,450.00.₹849.00Current price is: ₹849.00.Add to cart Buy nowQuick Review:
Laser Based Home Security System is a simple electronic project that uses a laser beam and LDR to detect unauthorized entry. When the laser beam is interrupted, the system activates a buzzer or alarm, providing instant security alert. It is low-cost, easy to build, and ideal for science hobby projects and school exhibitions.
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- Higher efficiency than half-wave rectifier
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