ITEM NAME:Digital Engine Tach Tachometer Hour Meter Inductive for Motorcycle Motor LJ Features: 100% Brand new and high quality! Works on all spark ignition engines by selecting engine type using S1 and S2 buttons Wide operating temperature range Show engine rpm and record hours of operation. Large LCD display for easy reading. Inductive design: You just need to tie the cable to the for spark plugs..Inductive design: You just need to tie the cable to the for spark plugs. Accuracy: 1 minute or 10 RPM, Quartz. Show engine rpm and record hours of operation. Works on all spark ignition engines by selecting engine type using S1 and S2 buttons.