MARBERO
✓Price
$31.99
Home/Home & Garden/Home & Garden/Garden/Mowers & Outdoor Power Tools/Generators & Portable Power/Generators
Micro Hydro Generator, 12V DC Water Turbine Generator, 10W Hydroelectric Power Generator Turbine Generators Hydroelectric Tap Water Flow
★★★★★
$31.99
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1
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About this item
- Temperature-Activated Automatic Operation: This greenhouse window opener responds to temperature changes without requiring electricity or batteries. As the temperature rises, the mechanism expands and gradually opens the window to release excess heat. When temperatures drop, the system contracts, allowing the window to close and retain warmth. This self-regulating function helps maintain consistent growing conditions without manual intervention
- Simple Installation on Greenhouse Frames: The opener can be mounted using either the clamp attachment or screw mounting options, providing flexibility for different greenhouse frame configurations. The design allows for attachment to standard greenhouse structures without requiring specialized tools or modifications. Users can position the unit on windows that need automated ventilation, selecting the mounting method that best suits their frame type
- Adjustable Temperature Range for Seasonal Needs: The unit features an adjustable opening temperature range from 15°C to 25°C (60°F to 77°F), allowing users to set the activation point based on their specific growing requirements. This adjustability accommodates different plant varieties and seasonal conditions, giving growers control over when ventilation begins. Once set, the mechanism responds consistently to temperature fluctuations within the chosen range
- Sufficient Opening Capacity for Effective Ventilation: The opener is capable of lifting windows weighing up to 7 kg (15 lb) and achieving a maximum opening of approximately 45 cm (18 inches) or 30 degrees, depending on the installation configuration. This range provides adequate airflow to help prevent overheating during warm periods while allowing the window to close fully when temperatures moderate. The opening capacity suits standard greenhouse vent configurations
- Non-Electric Operation for Unpowered Greenhouses: Because this system operates without electrical connections, it can be installed in greenhouses located away from power sources or where running electrical lines would be impractical. The solar-powered thermal mechanism provides reliable operation throughout the growing season without ongoing energy costs. This self-contained design supports greenhouse setups in remote garden locations
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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