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LPG and smoke leak alarm
BeginnerBuild time 1–2 hours· You'll learn: Arduino, Analog sensors, Thresholds
The MQ-2 sensor responds to LPG, methane and smoke. The Arduino warms it up, learns the clean-air reading and sounds the buzzer when the gas level climbs past a threshold, showing the level on a 16 × 2 LCD. A practical project for kitchens and labs, and a lesson in calibrating analog sensors.
Complete kit
₹3,929
Every part below as one item: we collect, check and ship the whole set together, with one GST invoice. Ships in about 6 business days.
View complete kitParts only: available parts total
₹3,455
4 of 4 line items available now.
Electronics
| Part | Role | Qty | Unit | Line | Status |
|---|---|---|---|---|---|
| Arduino Nano compatible (CH340)Board | Controller | 1 | ₹270 | ₹270 | ships in about 6 business days |
| MQ-2 analog gas sensor (DFRobot Gravity)Module | Gas and smoke sensor | 1 | ₹1,030 | ₹1,030 | ships in about 6 business days |
| 16 × 2 LCD with I2C (DFRobot)Module | Gas level display | 1 | ₹1,440 | ₹1,440 | ships in about 6 business days |
| Electronics fun kit with 830 breadboardKit | 830-point breadboard, jumper wires, LEDs, resistors, buttons and buzzer | 1 | ₹715 | ₹715 | ships in about 6 business days |
- A learning project, not a certified safety device: keep a certified gas detector where safety matters.
Prices are final and follow what Indian distributors have in stock (refreshed nightly). Out-of-stock parts are not added to the cart.