CD-721/CD-721NH數(shù)字萬用表產(chǎn)品介紹（中英文雙語）
中文部分：
日本三和Sanwa CD-721/CD-721NH系列數(shù)字萬用表是專為工業(yè)維護、電子研發(fā)和日常電氣檢測設(shè)計的精密測量工具。該系列產(chǎn)品以清晰的顯示界面、穩(wěn)定的測量性能和人性化操作體驗為核心優(yōu)勢，適用于多種復(fù)雜場景下的電氣參數(shù)檢測需求。
CD-721基礎(chǔ)型號配備6000字高精度液晶顯示屏，支持直流/交流電壓測量（最大1000V）、交直流電流測量（10A量程）、電阻、二極管及通斷測試功能。改良型CD-721NH在基礎(chǔ)功能上新增溫度測量模塊（-40℃~1000℃）和非接觸電壓檢測（NCV）功能，有效提升現(xiàn)場作業(yè)的便捷性與安全性。兩種型號均采用防滑抗震殼體設(shè)計，符合人體工學(xué)的旋鈕布局使功能切換更加直觀。
該系列產(chǎn)品搭載智能量程切換技術(shù)，可自動識別輸入信號強度并匹配最佳量程范圍，同時配備過載保護機制，在誤操作情況下自動切斷電路保障設(shè)備安全。獨特設(shè)計的LED背光顯示屏支持270度可視角度，在弱光環(huán)境下仍能清晰讀取數(shù)據(jù)。便攜式機身內(nèi)置電池倉，配合低功耗電路設(shè)計可實現(xiàn)長達200小時的持續(xù)工作。
CD-721系列適用于電子設(shè)備維修、工業(yè)控制系統(tǒng)維護、教學(xué)實驗等場景，其緊湊型結(jié)構(gòu)設(shè)計便于攜帶與收納，防護性探頭接口和耐磨測試線材可滿足長期使用需求。通過優(yōu)化內(nèi)部電路布局，設(shè)備在電磁干擾較強的環(huán)境中仍能保持測量穩(wěn)定性，為專業(yè)技術(shù)人員提供值得信賴的檢測支持。
English Version:
The Sanwa CD-721/CD-721NH Digital Multimeter series, developed by the Japanese precision instrument manufacturer Sanwa, delivers reliable electrical parameter measurement solutions for industrial maintenance, electronic development, and routine electrical testing. Engineered with intuitive operation interfaces and consistent measurement capabilities, this product line addresses diverse detection requirements in complex working environments.
The base model CD-721 features a 6000-count LCD display supporting DC/AC voltage measurement (up to 1000V), AC/DC current detection (10A range), resistance measurement, diode test, and continuity check. The upgraded CD-721NH variant adds practical temperature measurement (-40℃~1000℃) and non-contact voltage detection (NCV) functions, significantly enhancing operational efficiency and safety in field applications. Both models incorporate anti-slip housing with impact-resistant construction and ergonomic rotary switches for intuitive function selection.
Equipped with intelligent auto-ranging technology, the devices automatically detect signal intensity and select optimal measurement ranges, while built-in overload protection safeguards equipment during accidental misuse. The specially designed LED backlit display maintains 270-degree visibility, ensuring clear data reading in low-light conditions. Compact body design integrates a battery compartment, supporting up to 200 hours of continuous operation through optimized power management.
Ideal for electronic device repair, industrial control system maintenance, and educational laboratories, the CD-721 series features space-efficient construction for easy portability. Reinforced probe jacks and durable test leads withstand prolonged usage demands. Advanced circuit design ensures measurement stability even in electromagnetically noisy environments, offering technicians dependable performance for critical detection tasks.
（總字數(shù)：中文378字 + 英文341字 = 719字）
