This advanced thermal conductivity measurement system offers two standardized methods: (1) Vertical (ASTM D5470) for steady-state measurements (0.1–80 W/m·K) using copper pillars, ideal for low-conductivity materials like insulators, and (2) Horizontal (Angström’s Method) for transient measurements (0.1–1,000 W/m·K), suitable for high-conductivity materials like metals. The vertical method requires two sample thicknesses for accuracy but eliminates contact resistance, while the horizontal method uses temperature wave analysis for faster results without thickness constraints. Both methods feature ±0.001°C resolution, automated pressure/positioning controls, and comply with international standards, ensuring precision and reproducibility unmatched by domestic alternatives.