
FTTH Promotion Electronic Ball Marker Underground Locator Fiber Optic Marker Ball. Customizable Colors: Available in Yellow with bulk customization options for other colors. IP68 Waterproof Rating: Fully dustproof and waterproof with IP68 certification for underground use. High Compression Resistance: Withstands up to 5kN axial pressure without damage. Durable HDPE Material: Constructed from high-density polyethylene with high hardness and low melt index. Multiple Frequency Options: Supports various frequencies including Telecom, Gas, Water, and Cable TV. ID Chip Integration: Optional ID version with 10-digit unique code and 64-bit memory capacity. OEM and ODM Services: Accepts customization from samples with 20 years of industry experience.