The Harvst WaterMate Pro allows you to water across two zones for precise control, reduced water consumption and healthier plants. Set timers to deliver regular and specific amounts of water when you want and for complete peace of mind program the temperature sensor to automatically trigger extra watering when it gets too hot.

Our Pro pump is capable of delivering 35psi which means you can use soaker / porous hose.

WiFi enabled (will run without internet too) so you can remotely control and monitor your system and even receive email alerts for high/low temperature, when watering or if your tank is empty*. *Must be connected to home WiFi for alerts.

Your choice of power

If you have 240V electricity available, choose the mains powered option. If you don’t have power in the greenhouse or polytunnel, use the solar option.

Your choice of water supply

If you have mains pressure water at your greenhouse or polytunnel, choose the garden hose mode. Otherwise choose the pump model for a pressurised, high flow rate off-grid system which can run from a water butt or tank.

What’s in the Box

  • Control unit
    (approx 190mm x 120mm x 45mm)
  • Control unit mounting plate
  • Solar panel or power supply
  • 12 litre/min inline pump with inlet filter (for pump model)
  • Air temperature sensor
  • Dual electric water valves
  • 6m of 13mm braided inlet hose
  • 2 x 10m LDPE distribution pipe
  • A selection of joints and pipe fittings
  • 20m of 4mm micro irrigation pipe
  • 24 pressure compensated 4 litre per hour drippers and ground stakes
  • 12 x 4mm hose adapters
  • 10 x 360deg sprayers covering 1m2 each
  • 10 x 180deg sprayers covering 1m2 each
  • 6 x 4mm water taps
  • Includes both greenhouse and polytunnel fixings
  • Web app for Android and iPhone

Optional extras

Additional Information

Regular irrigation with consistent amounts of water has several benefits compared to relying solely on rain or hand watering. Here are some advantages of regular irrigation:

  • Precision and Control:
    • Consistent irrigation allows you to control the amount of water your plants receive, ensuring they get the right amount to thrive. This control is essential for different plant types and growth stages.
  • Water Efficiency:
    • WaterMate is designed to be used with a variety of fitting including drippers to minimise water wastage by targeting the root zone of plants directly. This reduces the risk of overwatering or underwatering, which is common with hand watering.
  • Plant Health:
    • Regular and consistent irrigation helps maintain consistent soil moisture levels, which is crucial for plant health. It minimises stress on plants and reduces the risk of drought-related damage.
  • Time Savings:
    • WaterMate saves you time compared to hand watering. You don’t need to be present for every watering session.
  • Disease Prevention:
    • Watering at ground level with irrigation systems helps keep foliage dry, reducing the risk of fungal diseases that thrive in wet conditions, such as powdery mildew or leaf spot.
  • Convenience:
    • Regular irrigation can be set on a schedule, ensuring that your plants receive water even if you’re away from home or have a busy schedule. This is not as convenient with hand watering or relying on rain.
  • Improved Root Development:
    • Consistent irrigation encourages plants to develop deeper root systems, as they are less likely to be stressed by fluctuating soil moisture levels.
  • Yield and Growth:
    • For agricultural or garden crops, regular irrigation can lead to higher yields and faster growth because the plants have a stable and reliable water source.
  • Adaptation to Specific Plant Needs:
    • Different plants have different water requirements. With irrigation, you can tailor the watering schedule to the specific needs of each plant variety in your garden or landscape.
WaterMate schematic

For medium & large greenhouses

Greenhouse watering system

For domestic polytunnels

Polytunnel watering system

Why choose solar power?

If you don’t have mains electricity in your greenhouse or polytunnel you can still have powerful automatic watering. The battery is charged by a small solar panel which should be mounted outside to catch the most sun. Supplied with 3m of cable, extensions available. Up to 10 minutes of watering time is possible per day in the summer (5 minutes most at one time).

Why choose mains power?

If you have 240v power, we recommend you use the mains version. You will be able to water for longer periods (if required … the 10 minutes supported by the solar model can deliver up 120 litres of water), and won’t be limited by darker days in winter. 

Mounts to greenhouse frame slots

Easy to fit

A complete greenhouse watering system including M6 cropped head bolts and P-clips to fix pipes and parts to a greenhouse frame.

automated mini greenhouses uk
Manage and monitor from anywhere

Control at your fingertips

Use our free web app on your smartphone (iPhone, Android, laptop or tablet) to control all the settings quickly and easily.

Smart solar watering for your greenhouse

Solar powered

Run WaterMate anywhere! It’s a true solar watering system; using solar power, and responding to solar energy to change your watering regime.

mini greenhouse temperature control
Sensor based watering saves water

Smart watering

WaterMate waters more when it’s hot and sunny, and less when it’s cool and overcast: healthier plants, and saves you water. It supports our soil moisture sensors too.

Installing into a greenhouse

Greenhouse fixings are included to fix pipes to the aluminium frame of a greenhouse.

  • 20 P-clips
  • M6 cropped head bolts
  • Control unit mounting plate
Control unit mounting plate

Installing into a polytunnel

Polytunnel fixings are included for straining / support wire to run down each side of the polytunnel, to which you attach your distribution pipe.

  • 30m galvanised wire
  • 2 wire tensioners
  • cable ties
Polytunnel irrigation kit
Polytunnel mounting kit