Core Insights - The grounding resistance tester industry in China has entered a mature development stage, characterized by steady market expansion and deepening technology applications. The market size is projected to reach approximately 1.236 billion yuan in 2024, with a year-on-year growth of 13.92% [1][5]. Industry Overview - Grounding resistance testers are specialized instruments used to measure the grounding resistance of grounding devices, widely applied in sectors such as electricity, communication, railways, petrochemicals, and construction. Their core function is to assess the safety of electrical equipment grounding systems by measuring the resistance between the grounding body and the earth [2]. Market Size - The grounding resistance tester industry is experiencing steady growth, with the market size expected to reach about 1.236 billion yuan in 2024, reflecting a 13.92% increase year-on-year. Competition has shifted from price-based to a comprehensive contest of technical performance, brand service, and solutions, with leading companies consolidating their market positions through product upgrades and application expansion [5]. Key Companies - The industry exhibits a competitive landscape characterized by concentration among leading firms and differentiation among smaller players. Companies like Uride and Wuhan State Grid have achieved differentiation through technological breakthroughs, such as Uride's UT278 series, which supports dual-mode measurement and has a range of up to 30 kΩ with a resolution of 0.001Ω [5][8]. Industry Development Trends 1. **Integration of Intelligence and IoT**: The industry is accelerating its transformation into "smart safety stewards" with the maturity of AI algorithms, 5G communication, and cloud platform technologies. Smart testers can automatically collect data and upload it to cloud platforms for AI diagnosis of grounding faults [11]. 2. **High Precision and Multi-Function Integration**: Technological iterations have improved measurement precision to a resolution of 0.001Ω, meeting the "zero error" acceptance standards for smart grids. The functionality of devices is extending to include soil resistivity measurement and continuity testing, adapting to new energy power plants and data centers [11]. 3. **Policy and Green Standards Driving Sustainable Development**: The dual push from "dual carbon" goals and new power system construction policies is promoting industry expansion and standard upgrades. The National Energy Administration has reinforced mandatory standards for grounding safety, while local governments provide subsidies for high-precision equipment [12].