[Versatile Compatibility] Designed specifically for humid environments like rainforest tanks and reptile/amphibian enclosures, this fan offers versatility for various terrarium setups. [High-Precision Monitoring] Equipped with an accurate probe sensor, you can precisely track the temperature and humidity within your reptile enclosure. The sensor includes a suction cup for easy attachment to glass. [High Temperature Alert] The fan features a high-temperature alarm that displays a warning when the temperature exceeds 100℉/38℃, allowing you to take immediate action to ensure the safety of your reptiles. [Quiet Operation] Operating at 2700 RPM, the fan facilitates quick air exchange to maintain a cool environment. The fan is equipped with an adjustable dial to control airflow speed, and at its lowest setting, it runs at just 28dB-quiet enough to keep your pets undisturbed. [Effortless Setup] The fan is operated by a single button. Press and hold to enter humidity settings, then use the button to adjust your desired humidity limit. Once the real-time humidity surpasses the set threshold, the fan activates. For manual control, simply press the button to start the fan, and press it again to stop. [Note] No batteries needed, powered by USB (Adapter Not Included) Specifications:℉/℃ Color:Green Material:plastic Package Contents: 1 * Reptile Ventilation Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.