Used XT Racing lap timer with a 2' cable. The only noticeable issue is the black circle where the LCD screen is not readable. The screen isn't cracked or broken and the dead pixels do not effect any of the functions. The dead zone is far enough out to the side that it doesn't effect reading lap times and only occasionally blocks the text in a menu. This is also includes a beacon that I never used. The beacon does not come with a wall plug but can be run off batteries. I've seen these wired to motorcycle batteries but if the track has power close enough you should use a cord. $75 shipped via PayPal