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$650.00Earn 650 points!
The TENGFEI GFC-190 is manufactured in accordance with the shipbuilding industry standard GB/T 335-2005. It is designed to fit snugly over the compass bowl, allowing for smooth rotation without sidewise motion that could lead to reading errors.
Precision Optics: Features a sighting device with a prism and reflection mirror. This allows sunlight to be projected as a line onto the compass card or celestial bodies to be reflected for easy reading.
Non-Magnetic Construction: Built from high-quality brass or high-strength aluminum alloy to ensure that the instrument itself does not interfere with the magnetic compass readings.
Durability: The unit typically comes in a hardwood or aluminum alloy carrying case for protection when not in use. It is designed to operate in extreme marine temperatures ranging from $-30^\circ\text{C}$ to $+60^\circ\text{C}$.
| Feature | Specification |
| Inner Diameter | 247 mm |
| Outer Diameter | 260 mm |
| Accuracy | 12’$ (Arc minutes) |
| Net Weight | 1.7 kg (Brass) / 0.6 kg (Aluminum version) |
| Reading Error | $\le 0.2^\circ$ |
| IMPA Code | 370323 |
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