Infra Red Racing Lap Timer it is not compatible with

it is not compatible with unmodified Hero3 or Hero3+ cameras

It is possible to replace the lens with a bit of skills and the right tools

The BCD dive light mount allows you to hold a dive light with a diameter up to 1 3/4"

C: Mini Ball Head in combination with GoPro Tripod mount (ore similar product depending on your camera) The Mini Ball Head has a 1/4" screw to attach to the camera

Samsung Galaxy J5 (2016)

Infra Red Racing Lap Timer it is not compatible withIntroducing the Onboard TV infra red lap timer, a must have accessory for motorsports enthusiasts. Complete kit with IR beacon to trigger the timer at the start finish line, and a LCD receiver mounted on your vehicle which will give you instant lap time information as soon as you cross the line. View your current lap time, lap number, and fastest lap for your session. Note: The only lap timer in the industry with a 2 Year warranty.