The CEM AT-5 is an engine tachometer that can be used on various types of engines to check the RPM of the engines, be it 2 stroke engines or 4 stroke engines. The AT-5 can measure the RPM of the engine by bringing it close to the plug chord of the engine. It has many measurement modes for various engines like 2 Stroke (1 and 4 cylinder) and 4 stroke (1,6 and 8 cylinders). It also comes with an antenna lead which can be used if needed.
Measurable Engine
Stroke | Cylinder | Measurable RPM Range |
2 | 1 | 100 ~ 20000 |
4 | 3 | |
2 | 2 | 100 ~ 13000 |
4 | 1 | |
2 | 2 | 100 ~ 10000 |
4 | 4 | |
2 | 3 | 100 ~ 6500 |
4 | 6 | |
4 | 1 | 100 ~ 20000 |
4 | 5 | 100 ~ 7000 |
2 | 4 | 100 ~ 4800 |
4 | 8 |
Antenna lead