The Scotty Seeker™ represents a radical advancement in downrigger trolling technology, providing anglers with a clear, straightforward method to monitor water conditions. What’s in the box: Probe Hydrophone Stainless steel leader Power cable Communication hub Charging dock USB-C to USB cable Scotty Seeker™ Features: Depth: True depth measurement at the probe. Temperature: Rapid response temperature sensor. Low Drag: Hydrodynamic design to cut through water. Probe Modes: Data refresh rate every 5 seconds on normal mode or every half-second on thermocline mode. Unique Identities: Assignable numeric identifiers for probe locations on your boat. Construction: Designed. Tested. Manufactured and assembled by Scotty and Airmar. Speed: High-performance paddle wheel delivers unmatched low-speed accuracy. Battery: Fast wireless charging and approximately 40 hours of battery life on a full charge. Compatibility: Compatible with iOS, Android, and most MFDs. Seeker App: Easy to install and use. Real-time metrics at the ready in the palm of your hand to provide an informed angling experience. Connectivity: Bluetooth wireless connectivity and ethernet. Expandability: Accomodates up to 4 probes simultaneously.