
( Brand: Tesoro ), ( Manufacturer Part Number: C55819 ), ( Part Type: Coil )
The **Tesoro C55819 Tejon 3/4" 18" Detecting Coil** is a precision-engineered, high-performance coil designed for professional metal detecting enthusiasts and commercial operators seeking unmatched sensitivity and depth in their searches. Crafted with meticulous attention to detail, this coil combines cutting-edge technology with rugged durability to deliver exceptional performance in a variety of environments, from urban parks and beaches to archaeological digs and treasure hunting expeditions. The **3/4-inch diameter** provides an optimal balance between search speed and target resolution, allowing users to efficiently cover large areas while still detecting small, deeply buried objects with clarity. Its **18-inch diameter** enhances sensitivity to ferrous and non-ferrous metals alike, ensuring that even subtle signals from coins, jewelry, or relics are not missed. The coil s **elliptical shape** and **high-frequency performance** minimize ground noise and interference, making it ideal for detecting in mineralized soils or areas with significant background clutter. Constructed from high-grade materials, the Tejon coil features a **waterproof and corrosion-resistant design**, ensuring longevity even in harsh conditions, while its **low-profile construction** reduces drag and improves maneuverability during searches. Whether used in commercial applications like scrap metal recovery or recreational treasure hunting, this coil stands out for its **superior target separation**, **deep detection capabilities**, and **reliable signal strength**, making it a trusted choice for discerning metal detectorists who demand the best in performance and precision.
**Pros and Cons of buying a Tesoro C55819 Tejon 3/4" 18-Detecting Coil**
The Tesoro C55819 Tejon is a popular 3/4-inch diameter detecting coil designed for metal detecting enthusiasts, particularly those interested in hunting for coins, jewelry, and small targets. Below is a detailed breakdown of its advantages and disadvantages.
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### **Pros**
1. **High Sensitivity for Small Targets**
The 18-detecting coil configuration is optimized for identifying small, shallow targets like coins, rings, and jewelry. This makes it ideal for urban parks, beaches, and areas with fine soil where larger targets may be buried deeper.
2. **Compact and Lightweight Design**
The 3/4-inch coil is smaller than many standard coils, allowing for greater maneuverability in tight spaces, such as between rocks, in grass, or around obstacles. This reduces fatigue during long detecting sessions.
3. **Good Depth Performance for Its Size**
While not as deep-penetrating as larger coils (e.g., 11-inch or 12-inch), the Tejon still provides respectable depth for its class, often reaching 6 8 inches in favorable conditions. This balance makes it versatile for both shallow and moderately deep searches.
4. **Durability and Build Quality**
Tesoro coils are known for their robust construction, with reinforced wire and sturdy casing. The Tejon coil is no exception, offering longevity even when used on rough terrain or dropped occasionally.
5. **Compatibility with Tesoro and Other Detectors**
This coil is designed specifically for Tesoro detectors (such as the Tesoro Tracker or Tesoro Legend), but it can also be used with other detectors that support 3/4-inch coils, though performance may vary slightly depending on the machine s settings.
6. **Versatility in Different Environments**
The coil performs well in various conditions, including sandy beaches, grassy fields, and urban areas with mixed soil. Its smaller size helps it navigate uneven surfaces better than larger coils.
7. **Affordable Price Point**
Compared to high-end coils from other brands, the Tesoro C55819 is reasonably priced, offering good value for its performance in the small-target detection category.
8. **Minimal Interference from Large Targets**
The 18-detecting design helps reduce false signals from large iron or non-ferrous objects, allowing the user to focus more on small, valuable targets.
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### **Cons**
1. **Limited Depth Compared to Larger Coils**
The 3/4-inch coil will not reach the same depth as larger coils (e.g., 11-inch or 12-inch). If you re searching in areas with deep-buried targets (e.g., old fields or farmland), you may need to supplement it with a deeper coil.
2. **Smaller Search Area**
The reduced coil size means you ll cover less ground per swing, which can slow down your detecting speed in large areas. This may be less efficient for prospecting in open fields or large parks.
3. **Potential for Clutter in Iron-Rich Areas**
While the 18-detecting design helps filter some iron, areas with heavy mineralization or trash (e.g., urban dump sites) may still produce clutter. Advanced iron discrimination settings on your detector can mitigate this, but it requires practice.
4. **Less Effective on Very Large or Deep Targets**
If your primary goal is finding large, deep targets (e.g., gold nuggets, old coins in plowed fields), a larger coil would be more suitable. The Tejon is better suited for small, shallow targets.
5. **Compatibility Limitations**
While the coil works well with Tesoro detectors, it may not be optimized for non-Tesoro machines. Some users report that the coil s performance on other brands (e.g., Garrett, Minelab) may not match the manufacturer s specifications.
6. **Wear and Tear on Rough Terrain**
Although durable, the coil s smaller size makes it more susceptible to damage if dropped on hard surfaces or used in very rocky areas. Extra care is needed to avoid bending or damaging the coil.
7. **Learning Curve for Optimal Use**
Mastering the Tejon s settings (e.g., sensitivity, discrimination, and search modes) takes practice. Beginners may initially struggle to distinguish between small targets and clutter, requiring time to adjust.
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### **Conclusion**
The Tesoro C55819 Tejon 3/4-inch 18-detecting coil is an excellent choice for metal detecting enthusiasts who prioritize finding small, shallow targets like coins, jewelry, and relics. Its compact size, high sensitivity, and durability make it ideal for urban parks, beaches, and areas where maneuverability is key. However, it is not the best option for deep prospecting or searching for large targets, where a larger coil would be more effective.
If your detecting goals align with finding small, valuable items in tight spaces, the Tejon is a reliable and cost-effective investment. For those who also hunt for deeper or larger targets, pairing it with a multi-coil setup or a larger coil would be advisable.
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### **Recommendation**
**Buy the Tesoro C55819 Tejon if:**- You primarily search for coins, jewelry, or small relics in urban, beach, or grassy environments.
- You prefer a lightweight, highly sensitive coil for small-target detection.
- You already own a Tesoro detector or are willing to use it with compatible machines.
- You want a durable, affordable coil that balances sensitivity and maneuverability.
**Consider alternatives if:**- You frequently search in deep or large-target environments (e.g., farmland, gold fields), in which case a larger coil (e.g., 11-inch or 12-inch) would be more suitable.
- You need a coil with even greater depth penetration, as the Tejon s limitations may frustrate deep prospectors.
- You re on a tight budget but also want a coil that can handle both small and moderately large targets, in which case a mid-sized coil (e.g., 7-inch or 9-inch) might be a better all-around choice.
Overall, the Tesoro C55819 Tejon is a strong performer for its intended use and is highly recommended for small-target hunters who value precision and portability.
It still works great, I tested it myself. It has the 4 pin design. If you want a coil that covers alto of area this is it. It has a small cut on the outer cover of wire as you can see in pictures, does not affect usage.
Lightly used Tesoro Tejon 3/4 18 metal detector coil.

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