Meeting Room Ventilation Monitor Pro Kit with Arduino Uno + LED
Meeting Room Ventilation Monitor Pro Kit with Arduino Uno — Build Your Own Ocean Acidification Model & Air Quality Tracker
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a multi-sensor system that continuously logs CO₂ concentration, pH, and conductivity of water as CO₂ is bubbled through — replicating the process of ocean acidification in a controlled classroom or lab setup. This kit turns environmental science theory into hands-on data, perfect for advanced STEM projects, engineering capstones, and environmental awareness demonstrations.
What You'll Build
You'll assemble a compact PCB-based monitor that reads an MH-Z19B NDIR CO₂ sensor, an analog pH probe, and a TDS (EC) meter. Data gets timestamped via a DS3231 RTC and saved to a microSD card, while a 0.96-inch OLED displays real-time values. The entire system can be powered by a 9V battery, making it portable for field demonstrations or long-term lab experiments.
What You'll Learn
- Calibrating and interfacing analog pH and TDS sensors with Arduino Uno
- Reading CO₂ data via UART from the MH-Z19B and interpreting ppm values
- Logging sensor data to a microSD card with timestamps for long-term analysis
- Modeling ocean acidification by injecting CO₂ into water and observing pH drop and conductivity changes
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Analog pH Module | 1 |
| TDS EC Meter | 1 |
| MH-Z19B CO₂ Sensor | 1 |
| DS3231 RTC Module | 1 |
| MicroSD Card Module | 1 |
| 0.96 inch OLED Display | 1 |
| 10kΩ Resistors | 5 |
| 100nF Capacitors | 10 |
| PCB Prototype Board | 2 |
| 9V Battery Snap | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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
This advanced kit is built for B.Tech students in ECE, EEE, or Environmental Engineering pursuing capstone projects, Smart India Hackathon participants building air quality or environmental monitoring solutions, and CBSE Class 12 students undertaking investigatory projects on greenhouse gases and acidification. It's equally suited for ATL Tinkering Labs mentoring advanced learners and research enthusiasts at IIT, NIT, VIT, and BITS
Meeting Room — CO2 injection into water while pH and conductivity track acidification. Models ocean chemistry.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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