Deeper DP2H10S10
Deeper START Fish Finder Instruction Manual
Model: DP2H10S10
Brand: Deeper
Introduction
The Deeper START Fish Finder is a portable, castable smart sonar device designed for recreational fishing from various locations such as docks, shores, banks, or kayaks. It connects wirelessly to your smartphone or tablet via its own Wi-Fi, providing real-time data on fish location, depth, bottom contour, and vegetation.
What's in the Box
- Deeper START Fish Finder unit
- Barrel Swivel (for attaching to fishing line)
- USB Charging Cable
- Instruction Manual (this document)

Front view of the Deeper START Fish Finder retail box.

Diagram illustrating the contents included in the Deeper START Fish Finder box.
Setup Guide
1. Charge Your Deeper START
Connect the provided USB charging cable to the Deeper START unit and a power source. A full charge takes approximately 2.5 hours and provides up to 6 hours of continuous usage.
2. Download the Fish Deeper App
Download the free Fish Deeper app from the Apple App Store (for iOS devices) or Google Play Store (for Android devices). Search for "Fish Deeper" or "Deeper Smart Sonar".
3. Connect to Your Smartphone/Tablet
Place the Deeper START unit in water near you to activate it. The device will automatically generate its own Wi-Fi hotspot. Go to your smartphone/tablet's Wi-Fi settings and connect to the "Deeper Start" network (e.g., "Deeper Start 9EB4").
Note: For optimal performance and to prevent interference, it is recommended to disable mobile data or Wi-Fi Assist on your smartphone while connected to the Deeper START's Wi-Fi.

Illustration of the Deeper START Fish Finder connecting wirelessly to a smartphone via Wi-Fi.
4. Attach to Your Fishing Line
Use the provided barrel swivel to securely attach the Deeper START unit to your fishing line. Ensure the connection is strong to prevent loss during casting.

Visual guide demonstrating the wireless connection, casting, and data reception on the Fish Deeper app.
Operating Instructions
Casting and Scanning
Once connected, open the Fish Deeper app. Cast the Deeper START unit into the water. As you reel it in, the app will display real-time sonar data, showing fish icons, depth, bottom contour, and vegetation.
Tip: The larger the fish icon, the larger the fish. Numbers near fish icons indicate their depth in the water column. The depth chart on the right side of the screen shows the current depth reading under the sonar beam.

The Deeper START Fish Finder alongside a smartphone showing the live sonar display with fish, bottom contour, and depth readings.

A close-up of the Fish Deeper app interface on a smartphone, highlighting fish icons, detailed bottom information, instant depth reading, and display modes.
Night Fishing Mode
The Deeper START features a built-in light for night fishing, allowing you to easily locate the device in low-light conditions.
Official product video demonstrating the features and usage of the Deeper START Smart Fishfinder.
Features and Specifications
- Weight: 65 grams (2.3 ounces) - Lightweight for easy casting.
- Connectivity: Wireless Wi-Fi connection (generates its own hotspot, no mobile data needed).
- App Compatibility: Free Fish Deeper app available for iOS and Android devices.
- Casting Range: Up to 50 meters (165 feet).
- Depth Range: Scans down to 50 meters (165 feet), with a minimum depth of 0.5 meters (1.6 feet).
- Sonar Type: Single beam frequency, 120 kHz, 40° beam cone.
- Battery Life: Up to 6 hours of continuous use.
- Charging Time: Approximately 2.5 hours for a full charge.
- Water Temperature Range: Operates in temperatures from 0°C (32°F) to 40°C (104°F).
- Night Fishing: Built-in light for visibility in low-light conditions.

Diagram illustrating the sonar type, beam cone, connection range, and depth range of the Deeper START Fish Finder.
Maintenance
Charging
Regularly charge your Deeper START using the provided USB cable. Ensure the charging port is clean and dry before connecting the cable.
Cleaning
After each use, wipe the Deeper START unit clean with a soft, damp cloth. Ensure it is completely dry before storing.
Storage
Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
Troubleshooting
Connectivity Issues
- Ensure the Deeper START is in water to activate its Wi-Fi hotspot.
- Verify that your smartphone/tablet is connected to the Deeper START's Wi-Fi network.
- Disable mobile data or Wi-Fi Assist on your device to prevent interference.
- Ensure your smartphone/tablet is held in a position that allows for an unobstructed connection to the Deeper START (avoid placing it on the ground, in pockets, or cases).
- Restart the Fish Deeper app and/or your smartphone/tablet if connection problems persist.
Inaccurate Readings
- Ensure the Deeper START is floating correctly and not submerged or obstructed.
- Check for debris or marine growth on the sonar transducer.
- Verify that the water temperature is within the operating range (0°C to 40°C).
Battery Not Charging
- Ensure the USB cable is securely connected to both the Deeper START and the power source.
- Try a different USB port or power adapter.
- Check the charging port on the Deeper START for any obstructions or damage.
Warranty and Support
The Deeper START Fish Finder comes with a manufacturer's warranty. For detailed warranty information and support, please refer to the official Deeper website or contact Deeper customer service.
Official Website: deepersonar.com
For further assistance, please visit the Deeper Store on Amazon.
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