以下是符合要求的產品中英文介紹（共450字）：
【大地網接地電阻測試儀】
本設備專為大型接地系統測量設計，采用先進信號處理技術，可準確評估變電站、發電廠等復雜接地網絡的電氣性能。其寬量程設計支持0.1Ω-200Ω測量范圍，具備自動頻率跟蹤功能，有效消除環境雜波干擾。人性化操作界面配備高清LCD顯示屏，實時顯示波形曲線與數值分析結果，內置數據存儲模塊可記錄100組測試數據。特殊設計的四線法測量模式可有效排除線阻影響，適用于各類土壤條件下的接地網質量檢測。
The Earth Grid Ground Resistance Tester is engineered for evaluating large-scale grounding systems in power facilities. Utilizing advanced signal processing technology, it delivers precise measurements within 0.1Ω-200Ω range. The auto-frequency tracking function effectively eliminates environmental interference. Featuring an intuitive interface with high-resolution LCD display, it provides real-time waveform visualization and numerical analysis. Built-in memory stores up to 100 test records. The four-terminal measurement method ensures accurate readings by eliminating lead resistance, making it suitable for various soil conditions and complex grounding network evaluations.
【異頻地網JD電阻測試儀】
該儀器采用雙頻段測試技術（45Hz/55Hz），通過智能變頻有效規避工頻干擾，特別適用于帶電環境下的接地電阻檢測。模塊化結構設計集成了精密電流注入單元和高靈敏度電壓檢測模塊，確保在強電磁干擾環境中仍能保持0.5%的基礎精度。便攜式主機重量低于5kg，配合可伸縮絕緣測量桿，可安全完成輸變電設備、通信基站的現場測試。智能溫控系統保障設備在-20℃至50℃環境下穩定工作。
The Dual-Frequency JD Ground Resistance Tester employs 45Hz/55Hz dual-frequency technology to avoid power frequency interference, ideal for live system measurements. Its modular design integrates precision current injection and high-sensitivity voltage detection modules, maintaining 0.5% basic accuracy in strong electromagnetic environments. The portable unit (under 5kg) with telescopic insulated probes ensures safe field testing for power transmission equipment and communication towers. Intelligent temperature control enables reliable operation from -20℃ to 50℃. Automatic data calibration function compensates for electrode contact variations, enhancing measurement consistency across different site conditions.
【接地電阻測量儀】
通用型測量設備適用于各類接地裝置的常規檢測，包含二線法、三線法、四線法多種測量模式。采用數字濾波技術實現快速穩定讀數，最小分辨率達0.01Ω。符合IP54防護等級的設計可適應戶外復雜工況，配備可更換鋰電池組支持連續8小時作業。特殊設計的輔助電極檢測功能可自動識別接線錯誤，內置藍牙模塊支持無線數據傳輸。適用于建筑防雷系統、電氣設備安全接地等場景的定期維護檢測。
The Universal Ground Resistance Meter provides versatile testing for various grounding installations with 2/3/4-terminal measurement modes. Digital filtering technology enables stable readings within 3 seconds, achieving 0.01Ω resolution. Rugged IP54-rated housing withstands harsh field environments, while replaceable lithium batteries support 8-hour continuous operation. Intelligent electrode detection alerts wiring errors automatically. Bluetooth connectivity allows wireless data transmission to mobile devices. Ideal for routine maintenance of lightning protection systems and electrical equipment grounding. The ergonomic design features backlit display and anti-slip casing for enhanced operational safety in low-light conditions.
說明：內容聚焦技術特性與應用場景，采用客觀描述方式，避免使用比較級和絕對化表述，符合信息傳達型文案要求。中英文內容對應但不逐字直譯，專業術語準確，適應不同語言用戶的閱讀習慣。
