Aquarium Temperature Monitor Kit with Arduino Uno + Relay
Arduino-Powered Aquarium pH & Temperature Monitor Kit — Automate Water Quality with Relay Control
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 compact Arduino system that keeps aquarium water healthy by monitoring temperature and pH in real time, then automatically switching a heater or a pH dosing pump when levels drift. Whether you’re managing a high-school biology exhibit, an engineering farm-tech project, or a home aquaponics tank, this kit brings precision control into a single breadboard assembly. No more manual checks or stressed fish — the relays react the moment water parameters fall outside your preset safe window.
What You'll Build
You will assemble a working aquarium monitor displaying live temperature and pH on a 16×2 LCD, powered by an Arduino Uno. Two independent 5V relay channels activate a heater or a chemical dosing pump when thresholds are breached, protecting aquatic life. The system uses a waterproof DS18B20 for submersible temperature sensing and an analog pH module for continuous acidity monitoring, all housed on a 400-point breadboard with diode protection for safe inductive load switching.
What You'll Learn
- Read DS18B20 waterproof one‑wire temperature data with Arduino’s OneWire library
- Interface an analog pH sensor and convert voltage to pH scale using calibration
- Control high‑power 230V AC devices safely via relay modules and 1N4007 flyback diodes
- Display sensor values on an I2C‑backed 16×2 LCD for a clean, real‑time dashboard
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Analog pH Module | 1 |
| DS18B20 Waterproof | 1 |
| 5V Relay Module | 2 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistors | 5 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 25 |
| 9V Battery Snap | 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
CBSE Class 11–12 students tackling sensor-based physics or agriculture projects, B.Tech ECE/EEE undergraduates needing a ready-to-assemble minor project, and Smart India Hackathon teams working on aquaculture automation will find this kit directly relevant. ATL Tinkering Lab innovators and home aquaponic growers can also deploy it right out of the box.
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?
The included AI companion walks you through every wiring and code step, and you can reach our support team on WhatsApp for personalized help.
Is this kit suitable for saltwater reef aquariums?
Yes, the pH module covers 0–14 and the DS18B20 is waterproof; just rinse the probes after exposure and recalibrate regularly for saltwater use.
Can I use this outdoors for fish farming ponds?
The sensors are waterproof, but the Arduino and breadboard need a weatherproof enclosure. The AI guide suggests protective case designs for field use.
Does it include instructions for calibrating the pH sensor?
Calibration with buffer solutions is fully covered in the build companion, along with code adjustments; buffer solutions are not included but easily sourced.
Aquarium — pH sensor and DS18B20 water temp both monitored. Relay triggers heater or pH dosing pump when out of range.
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