The timing light enables the synchronization of the ignition system with the piston movement. An inductive pick-up replaces the necessity to disconnect the spark plug wire to operate the timing light. Timing readout: 0-60� BTDC Features: Timing advance up to 60 crankshaft degrees | Superior performance at all speeds through 8000 rpm | Operates on all 12volt ignition systems | Xenon bulb providing Brilliant Blue/White | 1,000,000 Flash capacity | Automotive reverse polarity and overload protection | Inductive pick-up | Double check light indicates incorrect hook-up and faulty Flash | Replaceable Xenon Flash tube (Part No. 77009) | Supplied for the French market, complete with French packaging and instructions. Sadly instances of fraud are on the increase. The cost of fraud has to be passed.