we are timekeepers from Germany and doing hillclimb races with up to 11 photocells. For this jobs, we used Tag Heuer PTB 605 and PTB 606 with multichannel boxes. Now our PTB 605 has a defect and we are looking for a used timer. Preferable Tag Heuer but the brand dos not really matter. The key factor is the ability of more than 8 channels and the precision at least 1/1000s.
Greetz from Germany