Automatic Window Opener Sensitive Temperature Sensor

107g Package: Do not dismantle the cylinder. 【Quality Material】Made of quality material, and convenient to use. 【Automatic Window Opener】As the temperature changes automatically, maintains the best growing temperature and prevents your greenhouse from overheating. 【Non-electric】Uses solar energy, open or close the greenhouse vents as temperature rises or drops. Greenhouse automatic vent openers are really quite necessary for anyone who is short on time. They are one of the simplest products for greenhouse automation. Instead of walking out and opening and closing your vents every day, it will be done when needed for you. Warm air rises Specifications: Weight: Approx. Greenhouse Automatic Vent Opener Automatic Window Opener Sensitive Temperature Sensor Greenhouse Window It can supply a better temperature condition of plant’s growth.