✅Efficient Tracking: The BK9S speed sensor is equipped with the latest sensor developed in-house, which prevents magnetic interference and allows more accurate data acquisition. We will respond within 24 hours (excluding weekends and holidays).
Product model number: BK9S Color: Black Material: Plastic Type: Cycling Battery included or Built-in: Yes Package size: 8.9 x 7.3 x 2.2 cm; 50 g
