wottnuelront Build-in Rain Shield 40X40cm,Max Vent Air Roof Vent, Automatic Rain Sensor,10-Speeds and Reversible Airflow, Remote control,Campervan Roof Vent Fan

• 【Built-in Rain Shield Cover】Activate during driving, use in rainy weather or as a ceiling fan with a cover. Even in the rain, there's no need to worry. This RV-specific roof fan maintains air circulation even when the roof vent lid is closed. (NO THERMOSTAT FUNCTION)
• [Quick and Easy Installation] Suitable for all 40 * 40 cm (15.75 inches * 15.75 inches) roof openings, compatible with most RVs, trailers, campers, or vans. The fan is easy to install and can easily replace existing ventilation openings.
• [10 speed and reversible airflow] This device can introduce fresh air into the interior of RVs and vans, and expel hot air. Ultra quiet at low speeds, but powerful at high speeds, capable of quickly expelling hot air from RVs and vans. Can continue to introduce fresh air while you rest
• [Remote control function] Automatically close the lid and stop the fan when encountering water. The electric lifting cover can automatically open and close.
• 100% Waterproof: We have tested it for thousands of hours in the rain! Hundreds of RV roofs have been installed and have withstood the test

40CM RV ventilation vent with Built-in Rain Shield Cover, 10 speed air inlet and outlet remotely controlled RV roof vent with adjustable reversible exhaust fan. 1. Automatic rain sensor, if it starts raining, it will turn off. Remote control+manual control 2.10 speed, air in and out. The fan operates with the lid closed to circulate air. 3. Easy to install and connect to a 12V battery