Coastal Salinity Monitor Variant 5
Advanced Coastal Salinity Monitor Kit — Track Tidal Salinity Intrusion with Arduino, GPS & SD Logging
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Monitor saltwater intrusion in estuaries across a full tidal cycle. This advanced kit lets you build a portable, battery-powered data logger that measures total dissolved solids (TDS) every few minutes, geotags each reading with GPS coordinates, and stores everything on a microSD card. Ideal for coastal engineering students and researchers mapping salinity gradients in real time.
What You'll Build
A waterproof field instrument that records conductivity-based salinity readings alongside precise location and timestamp data. The 0.96-inch OLED displays live TDS values, while the integrated GPS module logs latitude and longitude. After a tidal deployment, remove the microSD card and import CSV files into MATLAB, Python, or Excel for analysis — a complete environmental monitoring tool.
What You'll Learn
- How to interface a TDS conductivity sensor with an Arduino Uno for fast, repeatable salinity measurement
- Using a NEO-6M GPS module to geotag environmental data points
- Implementing a DS3231 real-time clock for accurate timestamps and temperature-compensated logging
- Soldering and assembling a weatherproof enclosure for multi-day field deployments
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| TDS EC Meter | 1 |
| NEO-6M GPS | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 10 |
| Waterproof Enclosure | 1 |
| 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
Designed for B.Tech environmental or civil engineering students undertaking coastal salinity and intrusion studies. Smart India Hackathon teams developing IoT-based water quality monitors will find the GPS-logging core directly applicable. ATL Tinkering Lab mentors can use this kit to demonstrate sensor fusion and environmental data science at an advanced level, appropriate for IIT, NIT, VIT, or BITS final-year projects.
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 to launch the AI companion, which knows every wire and line of code. It works step by step, and our WhatsApp support replies within 4 hours if you need a human touch.
Can I deploy this monitor directly in seawater?
Yes, the included waterproof enclosure and epoxy sealing guidelines protect splashes and brief submersion. For prolonged underwater use, we recommend adding conformal coating (not included) to the PCB.
How do I calibrate the TDS sensor for field accuracy?
The build guide walks you through a two-point calibration using a provided reference solution. Temperature compensation is handled automatically by the DS3231’s onboard sensor, giving you salinity readings as mS/cm or ppm.
What analytics can I perform with the logged data?
CSV files open directly in Excel or Google Sheets. The AI companion also provides Python Jupyter notebook templates to plot tidal variation curves and map salinity hotspots using GPS coordinates.
TDS conductivity sensor in estuary water measures salinity intrusion over tidal cycle. Logs to SD with GPS.
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.
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