for all GoPro Hero HD，Hero2，Hero3，Hero3+，Hero4

Specification:
- Size: 60*60*42mm
- Time range: 60mins
- Direction setted: CW direction
- Running direction: CCW direction
- Adaption screws: 1/4 screws， holes
- Loading capacity: Max.3.5kg
- End warning continuous time: !#!gt!*!3sec