Accurate and energy-saving ignition
For over 20 years, SEM has been innovating ignition systems for alternative fuel engines, including biofuel, natural gas, and hydrogen engines. These ignition system products have become the preferred choice for manufacturers supplying products to countries that adopt strict environmental regulations.
The engine combustion detection and monitoring function is built into our ignition system, which is an important feature to ensure precise ignition of the engine - SEM exclusive technology.
The ignition voltage detection function can detect worn or damaged spark plugs. This detection information can be used to predict the remaining life of spark plugs, which provides excellent support for after-sales service.
Ionic flow detection technology is used for engine combustion monitoring, enabling the ignition system to perform real-time misfire detection, combustion phase detection, early ignition detection, and detonation detection. These functions can also help reduce fuel consumption, extend maintenance intervals, and improve combustion stability.

SEM is a highly respected market leader in the design and production of small engine management system components. A typical application is handheld tools such as chainsaws, lawn mowers, and trimmers, but our professional application extends to any product powered by a small internal combustion engine. Our modular approach enables comprehensive, flexible, and customized services across all engine management systems, seamlessly integrating with the existing structure of the product. This includes engine control, brakes, air or fuel sensors and ignition control, as well as subsystems for dynamically optimizing the air-fuel ratio.
Meanwhile, we can combine our modules to provide a complete engine system specifically designed for customer applications.

Open frame solenoid coil, tubular solenoid coil, shift lock solenoid coil, start stop solenoid coil, solenoid valve, dual tube solenoid coil, Hall position sensor, inductive position sensor