--- product_id: 441034728 title: "MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light." brand: "melody"s hobby centre" price: "476 kr" currency: DKK in_stock: true url: https://www.desertcart.dk/products/441034728-melodys-hobby-centre-fire-alarm-physics-science-working-project-led store_origin: DK region: Denmark --- # LED + buzzer audio-visual alert 9V battery-powered fire alarm Boosts critical thinking & creativity MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. **Brand:** melody"s hobby centre **Price:** 476 kr **Availability:** ✅ In Stock ## Summary > 🚨 Ignite curiosity with every spark—build your own fire alarm today! ## Quick Answers - **What is this?** MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. by melody"s hobby centre - **How much does it cost?** 476 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/441034728-melodys-hobby-centre-fire-alarm-physics-science-working-project-led) ## Best For - melody"s hobby centre enthusiasts ## Why This Product - Trusted melody"s hobby centre brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **STEM Skill Builder:** Enhances problem-solving, creativity, and analytical skills through hands-on learning. - • **Compact & Lightweight:** Portable 78.74 x 55.88 x 2.54 cm design weighing just 190g—ideal for home or classroom. - • **DIY Science Project Kit:** Step-by-step manual included for smooth assembly—no extra tools needed, perfect for young innovators. - • **Interactive Fire Alarm Model:** Experience real-time fire detection with LED and buzzer alerts powered by a 9V battery. - • **Kid-Approved & Educator-Endorsed:** Trusted by parents, teachers, and principals for safe, educational fun. ## Overview MELODY'S HOBBY CENTRE Fire Alarm Science Project is a 9V battery-operated educational kit featuring a transistor-based switch that triggers LED and buzzer alerts when heat is detected. Designed for kids aged 8-11, it promotes STEM learning by developing critical thinking, creativity, and problem-solving skills through an easy-to-assemble, hands-on experience approved by educators. ## Description A fire incident took place near fire switch activates alarm;3V (DC); Sound; Audio Oscillator. * Made it on a cardboard base with diagram drawn on it.This is a handmade complete working model supported by rough study material to make a suitable projects report by the student. It is using Cardboard/Wooden base, Paper, Electronic-Electrical Components, Mechanical & Scientific goods as per the requirement of a particular model. ## Features - Fire alarm science project Transistor T1 working as SWITCH under Common Emitter configuration, whose output from collector is fed to the LED and Buzzer to give audio visual indication When thermistor is being heated by match stick, the internal resistance drops to a certain extent. This makes transistor to conduct and that allows the current to flow from positive to negative through LED and buzzer in parallel - 9v battery Operated - Includes step-by-step DIY instructional manual and certificate - An engaging activity for your child to learn and explore the world of science - Have Fun with hobby kit teaching aids Toys are Fun to Play with also Helps in Development of Early Age Analytical & Problem Solving Skills in Child and Helps Improving Creativity & Curiosity - Easy to understand instruction guide, Smooth assembly, No additional tools required, Approved by Kids, Parents, teachers and Principal and appreciated by all. Off Screen game. Concept Learning - Promotes Creativity and Problem-Solving Skills: Challenges kids to build and operate their own forklift, encouraging creativity, critical thinking, and problem-solving abilities - Ideal for both boys and girls - Fully Assembled & Tested. ## Technical Specifications | Specification | Value | |---------------|-------| | Product Dimensions | 78.74 x 55.88 x 2.54 cm; 190 g | | Manufacturer recommended age | 8 - 11 years | | Manufacturer reference | DDA-89 | | Educational Objective(s) | Critical Thinking | | Number of Game Players | 2 | | Number of Puzzle Pieces | 1 | | Assembly Required | No | | Batteries Required? | No | | tech_spec_battery_description_toys | Alkaline | | Material Type(s) | Fir | | Color | MULTI | | ASIN | B07SCL2D95 | ## Product Details - **Size:** A4 - **Brand:** MELODY"S HOBBY CENTRE - **Theme:** science - **Item dimensions L x W x H:** 78.7 x 55.9 x 2.5 centimeters - **Item weight:** 190 Grams ## Images ![MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - Image 1](https://m.media-amazon.com/images/I/61HsvydR8vL.jpg) ![MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - Image 2](https://m.media-amazon.com/images/I/51hsFmgCl2L.jpg) ![MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - Image 3](https://m.media-amazon.com/images/I/51CpwhCJJDL.jpg) ![MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - Image 4](https://m.media-amazon.com/images/I/51yqmbQPpRL.jpg) ![MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - Image 5](https://m.media-amazon.com/images/I/61a79CdAnDL.jpg) ## Frequently Bought Together - MELODY''S HOBBY CENTRE FIRE Alarm Physics Science Working Project with LED Running Light. - StepsToDo (with device) Hydroelectric Power Generation DIY Kit - StepsToDo Wind Turbine Science Kit. Windmill Making Kit for Students. Electricity from Flowing Air. Science Teaching and Learning Aid --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/441034728-melodys-hobby-centre-fire-alarm-physics-science-working-project-led](https://www.desertcart.dk/products/441034728-melodys-hobby-centre-fire-alarm-physics-science-working-project-led) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*