QPL certification is a system in which the US government guarantees the quality only for products that have passed strict local company inspections made of 150 tests and verifications under the supervision of the US government. Yeonhab Precision obtained the certification in Asia for the first time after 10 years of application. In particular, with the successful QPL registration for the first time in Asia, Yeonhab Precision is the first and only company in Asia which got the qualification of marking “MS” with the title of “Korea’s first MIL-DTL connector”. We will provide customers with the best products as we have the sense of the pride of developing the QPL certified connector with our own technology in Korea.

Ultra-High Density: With a pin spacing of 0.025 inches, it achieves maximum miniaturization and lightweight design. Ultimate Reliability: Designed to ensure perfect signal integrity even in harsh environments. Durability: Boasts outstanding environmental resistance that meets military and aerospace standards.

Vehicle-type RF Jammer Systems provide protection to VIPs and convoys against remote-controlled explosives. These systems create a protective shield through RF broadcasting and neutralize threats activated by radio, mobile phones and wireless remote-controlled devices. Vehicle-type RF Jammer Systems can be easily integrated aboard all kinds of vehicles, and allows for reprogramming against changing situations. Continuous broadband operation Control from hand terminal Module selection Malfunction warning VSWR warning

Our XR-based aircraft maintenance simulator is officially certified by the Ministry of Land, Infrastructure and Transport (MOLIT) of South Korea for training and education. It provides specialized training environments for the A321, B737-MAX, and B737-800NG aircraft, featuring over 80 detailed modules—including procedures for engine removal, main landing gear installation, and more. This subscription-based simulator is fully compatible with smartphones, tablets, and wearable XR devices, enabling seamless access through a cloud-based web service. Users can train anytime, anywhere—perfect for both remote learning and remote maintenance scenarios. Compared to traditional classroom learning, the XR platform is 4 times more effective and requires only one-third the training time. It also improves user confidence in real-world technical applications by up to 275%. By transforming traditional paper manuals into immersive, interactive training environments, the simulator delivers the next generation of aircraft MRO education for both civil and defense sectors.

Sungjin Techwin develops operating control computers designed for ground and naval defense applications. Engineered for harsh environments, these ruggedized systems provide secure and real-time processing to support RCWS operations, anti-drone defense, and unmanned surface vehicle control. Built to military standards, they offer high reliability under shock, vibration, and temperature extremes while enabling seamless integration with sensors, weapons, and communication networks. By combining durability with scalable architecture, Sungjin’s operating control computers ensure mission effectiveness across diverse modern battlefield domains.

Temperature Calibrated Pressure Sensors The Air Data Unit features very high accuracy absolute and differential pressure sensors. These are factory calibrated over a wide temperature range to further increase measurement accuracy and provide the best air data possible through varying conditions. Power Up Self-Calibration On top of factory temperature calibration, every time the air data unit powers up, it performs a self excitation calibration to adjust for small deviations of bias and scaling error. This allows the system to compensate for calibration aging and means that it never needs to be returned to the factory for recalibration. Reliability The Air Data Unit is built on top of a safety oriented real time operating system and all software is designed and tested to safety standards with fault tolerance. Its communication interface is optically isolated and the hardware is designed and tested to MIL spec.

This system product is a product that directly supplies and heats lubricant oil for smooth operation of the main engine cylinder’s metallic and mechanical movement. Lubricator, a product that supplies lubrication directly to the main engine cylinder liner, can control injection timing and consumption using an electronic control method that responds to the movement of the main engine piston. The alpha lubricator system is based on an algorithm controlling the cylinder oil dosage proportionally to the sulphur content in the fuel and, fuel consumption on particular load of engine. Minimum cylinder oil dosage is required to provide an adequate oil film and detergency properties. Everllence and WIN GD engines are currently applying the second generation Lubricator type, the Everllence type is Mk-I and the WIN GD type is Mk-ε (Epsilon).

This plays an important role that connects EMI shielding pieces of connectors and cables when manufacturing EMI shielded cables. It is also applied and used in defense, space, aviation, and industrial equipment. Key features of the military connector adapter: Designed to be compatible with various MS/VG standard connectors and general connectors. Environmental Protection: It is waterproof and dustproof, ensuring stable operation in severe weather and extreme environments. Robustness: It is highly durable against impact, vibration, corrosion, and more to meet military and industrial requirements. EMI shield: Prevent electromagnetic interference (EMI) to maintain signal integrity.