Growee vs Dosatron: Smart vs Mechanical Dosing for Hydroponics
⚙️ How These Systems Work?
If you’re growing with hydroponics or any other soilless method, managing your feeding solution is critical. That means dosing the right amounts of fertilizers, balancing pH, and ensuring your plants get consistent EC control. Whether you’re feeding a small home grow or managing a commercial grow room, your dosing system can either automate success or introduce costly variability.
Two popular tools for automating this job are Growee and Dosatron and they offer very different approaches to hydroponics control. This article breaks down how they work, compares open-loop vs closed-loop feeding, and helps you choose what fits your system best.
Growee
Closed-loop, sensor-driven dosing system. It automatically monitors your nutrient solution using EC (electrical conductivity), pH, and temperature sensors, then uses peristaltic pumps to dose nutrients and adjust pH as needed. Everything is controlled via an app, and data is stored in the cloud, so you can track trends or troubleshoot.
Key concept: Growee constantly checks the actual state of your water and adjusts in real-time, like cruise control for your feeding solution.
Dosatron
Dosatron is a mechanical injector powered by water pressure. As water flows through it, it drives a piston that pulls nutrients from a concentrate tank and mixes them into the irrigation line. There’s no electricity or sensors involved — you set the dose manually (ml per gallon), and the system injects as water passes through.
Key concept: Dosatron is based on preset ratios — it does not know or care what’s happening in the water. It’s open-loop control.
System Highlights: Growee vs Dosatron
🌿 Growee Highlights
- Works with any hydroponic system using a batch tank.
- Automates pH in hydroponics with built-in dosing logic
- Tracks EC control, temperature, and pH 24/7
- Perfect for soilless grow room setups needing automation
- Easy to install, remotely managed via mobile or desktop
💧 Dosatron Highlights
- No electricity or software needed
- Scalable across large farms with inline feeding lines
- Great for consistent recipes with manual monitoring
- Best paired with external pH control tools and EC meters
- Ideal for teams comfortable testing water manually
System Highlights: Growee vs Dosatron
| Feature | Growee | Dosatron |
|---|---|---|
| Power Source | Electricity + App control | Water pressure only |
| Control Type | Closed-loop automation | Open-loop manual dosing |
| Nutrient Dosing | Smart dosing via app | Manual ml/gallon injection |
| pH Control | Automatic pH up/down | None – manual testing required |
| EC Control | Yes – target EC set by user | None |
| Monitoring | Real-time pH, EC, temp | No sensors |
| Grow Room | Batch tanks and recirculating hydroponics | Best for direct feeding |
| Installation | Plug-and-play with guided setup | Inline plumbing required |
| Remote Access | Full cloud dashboard | Not available |
| Data Logging | Yes – all parameters logged | None |
| Best For | Small-scale, boutique growers | Large-scale farms with manual teams |
🔄 Open-Loop vs Closed-Loop Control in Hydroponics
In hydroponics, how you control your system can make a huge difference. There are two main methods: open-loop and closed-loop. An open-loop system doses nutrients or adjusts pH based on a fixed setting — it doesn’t check what’s happening in the water.
A closed-loop system uses sensors to monitor the water in real time and automatically adjusts dosing to reach the exact target. It’s the difference between guessing and knowing, and between doing it manually or letting automation take over.
Growee uses a closed-loop control system, which means it constantly monitors the water’s pH in real time using built-in sensors. Instead of adding a large dose all at once and hoping for the best, Growee adds small, measured amounts of pH Up or Down in short intervals. After each dose, it rechecks the water to see how the pH has changed. This loop continues until the exact target pH is reached. By making gradual adjustments and verifying results each time, Growee avoids overcorrection and keeps your hydroponic system stable, accurate, and fully automated.
Dosatron follows an open-loop approach. With Dosatron, the grower manually tests the water, then adds a fixed amount of pH Down based on past experience or trial-and-error. There is no feedback loop — the system doesn’t know if the adjustment worked. If water conditions change, the same dose might no longer be accurate
Final Thoughts
Growee offers real-time, sensor-based automation for nutrient dosing and pH control. It’s perfect for small to medium hydroponic systems using batch tanks, where precision and peace of mind are key.
Dosatron is a mechanical, scalable solution best for large commercial operations. It’s effective when your nutrient recipe rarely changes and staff are available to manually monitor pH and EC.
The key difference? Closed-loop vs open-loop control — Growee adapts in real time; Dosatron follows fixed settings without feedback.
