The Bykski flow sensor displays the flow rate in a water cooling system as optical feedback. Its satin finish subtly highlights the flow. The sensor can be installed on a component using an adapter with external threads or at any location with G1/4" threads. Additionally, there are a total of three possible G1/4" connections. The flow sensor is also equipped with aRGB lighting. Note: A closure plug is not included in the delivery. Technical specifications: Material: Acrylic, Color: Satin, Black, Thread: G1/4", LED: 5V RBW (ARGB).