The NS-850 Helix fish finder and depth gauge from Humminbird is compatible with model 411660-1 and comes in a multicolor design. It is made of durable plastic and is designed for use in boat electronics. The installation is done via a transom mount, allowing for a stable attachment to the boat. The power supply is wired, ensuring a reliable power source. With a screen diagonal of 5 inches, the device provides a good overview of the depth measurement data.