Ion Exchange Column Conductivity Monitor Kit with Arduino Uno + LED
Monitor Deionisation Kinetics in Ion Exchange Columns with Arduino Uno & Dual TDS EC Sensors Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a standard ion exchange column into a scientific instrument that logs inlet and outlet conductivity over time, measuring deionisation efficiency in real time. Ideal for validating column performance in water treatment, chemical engineering labs, or environmental science projects. This kit equips you with dual TDS EC sensors, a real-time clock, and an OLED display — all driven by an Arduino Uno — to capture the complete kinetics of ion removal.
What You'll Build
A dual-channel TDS/EC data logger that simultaneously measures the conductivity of water entering and leaving an ion exchange column, records timestamps via a DS3231 RTC to microSD card, and displays real-time differential efficiency on an OLED screen. You will calibrate the sensors, solder the complete circuit on a PCB prototype board, and upload Arduino code that processes the signals into meaningful deionisation curves.
What You'll Learn
- How ion exchange columns remove ions and why conductivity is a direct proxy for deionisation efficiency
- Interfacing dual TDS EC sensors with Arduino Uno and implementing two-point calibration routines
- Logging time-stamped conductivity data to microSD and analyzing degradation curves in Excel or Python
- Designing a self-contained, battery-powered instrument with real-time OLED feedback and data storage
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| TDS EC Meter | 2 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 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 of dual sensors with RTC and SD logging | You research and test each individual piece | Pre-calibrated TDS EC sensors matched with Arduino Uno and tested as a system |
| Build support for ion exchange monitoring logic | Scattered tutorials on separate components | AI companion with pre-written code snippets for dual-channel logging and efficiency calculation |
| Time to first working data plot | Days debugging sensor baselines and timing conflicts | Hours, with step-by-step guide from first wire to OLED curve |
| Shipping coordination | Multiple sellers, varying delivery dates | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
B.Tech ECE, EEE, and Chemical Engineering students building final-year instrumentation projects. Research scholars at IITs, NITs, VIT, BITS validating deionisation columns for water purification. Smart India Hackathon teams prototyping low-cost water quality monitoring solutions. The kit bridges electronics and process engineering, making it a strong fit for interdisciplinary project labs and ATL Tinkering Lab extensions in colleges.
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 on the kit box to access the AI companion, which provides step-by-step troubleshooting for this exact circuit and code. You can also message us on WhatsApp for human support within hours.
Do I need to purchase an ion exchange column separately?
Yes, this kit contains all electronic instrumentation; you need a standard laboratory ion exchange column with inlet and outlet ports for sensor probes. The kit is compatible with any column of typical lab scale.
Can I use the kit to measure pH instead of conductivity?
No, the TDS EC sensors measure total dissolved solids and electrical conductivity only. For pH, you would need a separate sensor module, but the Arduino board can be expanded with additional sensors later.
Is programming experience required?
Basic familiarity with the Arduino IDE is helpful, but the AI companion provides fully commented, pre-written code. You will learn to upload and modify it, and the companion explains every line relevant to the ion exchange monitoring logic.
TDS EC sensor at input and output of ion exchange column measures deionisation efficiency over time.
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.
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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