The Coltiva system

One control unit, a set of sensors, and up to eight pumps — sized to your reservoir and how much you want to run from the app.

Kits

Start with sensors, add pumps when you’re ready to dose from the app.

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Sensor kit

From €625

Track nutrient strength and reservoir climate — choose whether to add pH and water level sensing.

  • EC sensor
  • Water temperature sensor
  • Air temperature sensor
  • Humidity sensor
  • Optional: pH sensor, water level sensor
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Everything included

Complete kit

From €760

The full setup: every sensor, plus exactly the dosing and volume pumps your reservoir needs.

  • The full Sensor kit — every sensor included
  • Up to 8 volume pumps, your pick
  • Up to 4 dosing stations (2 pumps each), your pick
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Ready to dose

pH kit

€885

A complete Coltiva that regulates pH from day one: every sensor except water level, plus a dosing station at the kit price.

  • EC sensor
  • Water temperature sensor
  • Air temperature sensor
  • Humidity sensor
  • pH sensor
  • Dosing station (2 dosing pumps)
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Specifications

Real numbers for people who plan around them.

Sensors
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
Pumps
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
System
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 — attach and remove 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

Components

Every sensor and pump connects to the control unit through a single weatherproof connector.

The Coltiva pH sensor probe, shown next to an apple for scale.

pH sensor

Reads the acidity of your nutrient solution so you can dose pH+ or pH- to bring it back in range.

The Coltiva water level sensor, a white disc on a cable, shown next to an apple for scale.

Water level sensor

Mounted above the reservoir, it tracks the water level so you know when to top up.

A pair of Coltiva peristaltic pumps mounted on an oak block, with dosing tubes running to the reservoir.

Dosing pump

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.

A Coltiva volume pump on a suction-cup mounting bracket.

Volume pump

Moves water in bulk — circulating the reservoir, refilling it, or draining it completely.

The side of the Coltiva control unit, showing connectors for up to eight pumps plus sensors.

Up to 8 pumps

Mix dosing and volume pumps to match your setup — a dosing station takes two connections, a volume pump one.

A mounting plate holding the pH sensor and water level sensor in place above the reservoir with suction cups.

Sensor mount

Sensors attach to a shared mounting plate with suction cups, so everything stays in place above the reservoir.

The Coltiva control unit's sliding mount: rails on the unit slide onto matching rails on an oak block.

Attach and remove without tools

The control unit slides onto its mount and lifts straight off — no screwdriver, no rewiring. Move it, swap it, or take it with you.

Ready to talk specifics?

Tell us about your reservoir and what you’re growing, and we’ll help you choose the right kit.

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