One control unit, a set of sensors, and up to eight pumps, sized to your reservoir and how much you want Coltiva to handle on its own.
Every kit has every sensor. Pick the dosing pumps for how you feed, and add the Water pack to top up, dilute and change the solution automatically.
€1,184 incl. VAT
Holds your pH. For growers who want pH control with the whole reservoir and grow room monitored.
€1,459 incl. VAT
pH and feeding, hands-off. For two-part nutrients (A+B): Coltiva doses both parts and holds your pH.
€1,724 incl. VAT
Multi-part feeding. For three- and four-part nutrient lines, Cal-Mag, silica or PK boosters, with pH on its own pumps.
€624 incl. VAT
Just monitoring? The controller with its four core sensors. Watch your reservoir and grow room from the app, and add sensors and pumps whenever you're ready.
Real numbers for people who plan around them.
| Sensor | Range | Accuracy |
|---|---|---|
| pH | 2.5 – 11 pH | ±0.15 pH |
| EC (conductivity) | 0.0 – 4.0 mS/cm | ±0.15 mS/cm up to 2.0 mS/cm, ±0.3 mS/cm above |
| Water level | 30 – 1800 mm | ±1.5 mm |
| Water temperature | 0 – 65 °C | ±0.75 °C |
| Air temperature | 0 – 65 °C | ±0.75 °C |
| Humidity | 0 – 100 %RH | ±3 %RH |
| Pump | Flow | Accuracy | Notes |
|---|---|---|---|
| Dosing pump | 100 ml/min | — | Min. dose > 5 ml · 3 m head height |
| Volume pump | 4 l/min | ±10% | Min. dose > 0.5 l · 3 m head height |
| Pumps supported | Up to 8, in any mix of dosing and volume pumps |
|---|---|
| Connectivity | Wi-Fi, connects to the Coltiva cloud and app |
| Power supply | 12 V DC, center-positive plug, 1 A ± 0.05 A |
| Mounting | Sliding mount, attaches and removes without tools |
| Operating conditions (control unit) | 0–50 °C, below 85% RH, out of direct sunlight |
| Operating conditions (dosing pumps) | 0–45 °C, below 85% RH |
Every sensor and pump connects to the control unit through a single weatherproof connector.
Reads the acidity of your nutrient solution so Coltiva can dose pH+ or pH- to bring it back in range.
Mounted at the bottom of the reservoir, it tracks the water level so Coltiva knows when to top up with fresh water.
A peristaltic pump that doses small, precise amounts of nutrients or pH adjusters, as little as 5 ml at a time. Sold in pairs, as a dosing station.
Moves water in bulk: circulating the reservoir, refilling it, or draining it completely.
Mix dosing and volume pumps to match your setup. A dosing station takes two connections, a volume pump one.
Sensors clip onto a shared mounting plate that suction-cups to the reservoir wall, so everything stays exactly where you put it.
The control unit slides onto its mount and lifts straight off, with no screwdriver and no rewiring. Move it, swap it, or take it with you.
Tell us about your reservoir and what you’re growing, and we’ll help you choose the right kit.
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