Lab Gas Monitor Kit v2
Lab Gas Monitor Kit v2 — Dual-Sensor IoT Fire Alarm with ESP8266 SMS Alerts
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Protect your school lab or home workspace with a smart fire alarm that only goes off when both smoke and over-temperature conditions are met. This kit guides you through assembling a dual-condition alert system around an ESP8266, MQ-2 gas sensor, and DS18B20 temperature probe — sending an SMS to your phone the moment danger is detected. Ideal for CBSE class projects, ATL tinkering sessions, or any young maker learning how IoT can improve safety.
What You'll Build
You’ll place components on a 400-point breadboard to create a circuit that continuously reads air quality and ambient temperature. The logic activates a loud active buzzer and three red LEDs only when smoke levels exceed a safe threshold and the temperature simultaneously rises above a set limit. The ESP8266 then connects to Wi-Fi and sends a pre-defined SMS alert, so you’re notified even when away from the lab bench.
What You'll Learn
- How to read analog gas concentrations with the MQ-2 sensor and interpret its output
- How to obtain precise digital temperature readings from the DS18B20 probe
- How to write Arduino code that combines readings using logical AND for reliable fire detection
- How to configure an ESP8266 to send SMS alerts via a cloud service – a real-world IoT skill
Kit Contents
| Component | Quantity |
|---|---|
| ESP8266 NodeMCU | 1 |
| MQ-2 Gas Sensor | 1 |
| DS18B20 Probe | 1 |
| Active Buzzer | 1 |
| 5mm Red LED | 3 |
| 4.7kΩ Resistors | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| Micro USB Cable | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Beginner-friendly and built for young innovators aged 5 to 15, this kit fits perfectly into CBSE Class 11-12 electronics practicals, ATL Tinkering Lab safety demonstrations, or Smart India Hackathon prototypes. Even first-time breadboarders guided by a parent or teacher can complete this project and gain a real understanding of IoT-based safety technology.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code inside the box to chat with your AI companion, or reach out via WhatsApp for direct guidance from our support team.
Does the SMS alert need an active internet connection?
Yes, the ESP8266 must connect to a 2.4 GHz Wi‑Fi network. The kit includes simple instructions for safely storing your network credentials in the code.
Can I adjust the smoke and temperature threshold levels?
Absolutely. The source code is fully open, and the AI companion can help you modify the trigger values to suit your specific lab or home environment.
Will the buzzer sound if only smoke or only high temperature is detected?
No — the circuit uses a logical AND condition to minimize false alarms. Both sensors must exceed their respective thresholds simultaneously to activate the alarm and SMS.
Lab Safety — MQ-2 smoke and DS18B20 over-temperature together trigger dual-mode fire alarm with SMS via ESP8266.
What's in this kit
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items