Part Number: WFRPMSPD
Physical Dimensions (LxWxH): 1.25" x.75" x 1"
Weight: 7 grams (without mount)
Battery Life: Up to 12 months
Water Rating: IPX7 (waterproof up to 5 ft)
Wireless Signal Strength Up to 10 feet
*Note: Speed Sensor is NOT compatible with spin bikes