‌上海四达电子SD-2003卡片式数字万用表 产品介绍（中英文）‌

‌产品概述‌
上海四达电子SD-2003卡片式数字万用表是一款专为便捷测量设计的小型化电子工具。其轻薄的卡片式外观结合基础测量功能，适用于日常电路检测、家用电器维护以及电子爱好者的快速测量需求。产品采用清晰数字显示屏，搭配直观操作界面，在保证实用性的同时，兼顾便携性与易用性，是移动场景下高效测量的理想选择。

‌设计特点‌
SD-2003采用超薄机身设计，厚度仅相当于普通卡片，可轻松放入口袋或工具包中。外壳选用高韧性工程材料，表面经防滑处理，握持稳定且耐用性强。面板布局简洁，配备功能切换旋钮和防误触按键，配合大尺寸背光液晶屏，即使在光线不足的环境中也能清晰读数。内置低功耗芯片与长效电池设计，满足长时间使用需求。

‌核心功能‌
该万用表支持基础电参数测量，包括直流/交流电压（最高600V）、电流（10A量程）、电阻（0.1Ω-2MΩ）以及通断测试功能。配备自动量程切换技术，减少手动调节步骤，提升测量效率。通断蜂鸣提示功能可快速判断线路连接状态，适用于家庭电路检修或教学实验场景。此外，产品具备数据保持与自动关机功能，兼顾操作便利性与节能需求。

‌应用场景‌
SD-2003适用于多场景灵活使用：

• ‌电子维修‌：快速检测电器设备电压、电流异常，排查短路或断路问题。
• ‌教育培训‌：帮助电子专业学生或爱好者学习基础电路测量原理。
• ‌家庭使用‌：检查插座供电、电池电量、灯具线路等日常需求。
• ‌户外作业‌：轻薄便携特性满足工程师现场排查设备故障的需求。

‌产品优势‌

• ‌便携高效‌：轻量化设计打破传统万用表的体积限制，随手取用提升工作效率。
• ‌操作友好‌：简化功能按键与旋钮组合，新手用户亦可快速上手。
• ‌安全可靠‌：过载保护设计有效防止误操作导致的设备损坏。
• ‌经济实用‌：以合理成本提供基础测量功能，满足非专业场景的性价比需求。

‌Shanghai Star Electronics SD-2003 Card-Style Digital Multimeter Introduction‌

‌Overview‌
The Shanghai Star Electronics SD-2003 Card-Style Digital Multimeter is a compact electronic tool designed for quick and convenient measurements. With its slim, credit-card-sized profile and essential testing functions, it is ideal for daily circuit diagnostics, household appliance maintenance, and rapid measurements by electronics enthusiasts. Featuring a clear digital display and intuitive interface, it balances practicality with portability, making it a reliable choice for on-the-go troubleshooting.

‌Design Highlights‌
The SD-2003 boasts an ultra-thin body, comparable in thickness to a standard card, allowing easy storage in pockets or toolkits. Its high-strength engineering plastic shell incorporates anti-slip textures for secure handling and long-term durability. The simplified control panel includes a rotary function selector and tactile buttons, paired with a large backlit LCD screen for clear visibility in low-light conditions. Energy-efficient circuitry and extended battery life ensure prolonged operation.

‌Core Functions‌
This multimeter covers essential electrical parameters: DC/AC voltage (up to 600V), current (10A range), resistance (0.1Ω-2MΩ), and continuity testing. Auto-ranging technology minimizes manual adjustments, enhancing measurement efficiency. The audible continuity buzzer swiftly identifies circuit connections, suitable for home repairs or educational labs. Additional features include data hold and auto power-off for user convenience and energy savings.

‌Applications‌
The SD-2003 adapts to diverse scenarios:

• ‌Device Repair‌: Detect voltage/current anomalies in appliances and locate short circuits.
• ‌Education‌: Support students in learning fundamental circuit measurement principles.
• ‌Household Use‌: Check power outlets, battery levels, and lighting circuits.
• ‌Field Service‌: Portable design aids engineers in on-site equipment diagnostics.

‌Advantages‌

• ‌Portability‌: Lightweight form factor overcomes bulkiness of traditional multimeters.
• ‌User-Friendly‌: Streamlined controls enable quick mastery for beginners.
• ‌Safety‌: Overload protection safeguards against accidental misuse.
• ‌Cost-Effective‌: Delivers essential functions at an accessible price point for non-specialized needs.