【SZG-20B非接触式手持数字转速表 产品介绍】
SZG-20B是一款专为工业场景设计的便携式转速测量工具，采用先进光电传感技术，可安全、高效地获取旋转设备的运行数据。其非接触式测量模式有效避免传统接触式工具可能造成的机械磨损问题，适用于电机、风机、泵机、传动轴等多种设备的日常检测与维护。
产品搭载高灵敏度光学传感器，可在5-500mm范围内捕捉旋转物体反射信号，支持30-99,999 RPM的超宽量程覆盖。配备2.4英寸LCD背光显示屏，强光环境下仍可清晰读取数据，测量值误差控制在±0.05%以内，确保关键设备的精准监测。内置数据保持功能，可冻结测量瞬间数值便于记录，同时配备低电量提示及自动关机功能，单次更换电池可支持超过50小时连续工作。
人性化设计包括防滑橡胶外壳与轻量化结构，整机重量仅180克，符合人体工学的手柄设计保障长时间握持舒适度。工作温度范围覆盖-10℃至50℃，满足车间、实验室、户外等多场景需求。产品特别适用于禁止接触测量的精密仪器、高速旋转设备或存在安全隐患的带电设备检测，为设备预防性维护提供可靠数据支持。
【SZG-20B Non-Contact Handheld Digital Tachometer Product Introduction】
The SZG-20B is a portable rotational speed measurement tool designed for industrial applications. Utilizing advanced photoelectric sensing technology, it enables safe and efficient acquisition of operational data from rotating equipment. The non-contact measurement mode effectively prevents mechanical wear caused by traditional contact tools, making it suitable for daily inspection and maintenance of motors, fans, pumps, transmission shafts, and various other mechanical devices.
Equipped with a high-sensitivity optical sensor, the device captures reflective signals from rotating objects within a 5-500mm range, supporting an ultra-wide measurement span from 30 to 99,999 RPM. The 2.4-inch LCD backlit display ensures clear visibility under strong ambient light, with measurement accuracy maintained within ±0.05%. Practical features include data hold functionality for instant value freezing, low battery alert, and automatic power-off system. A single battery replacement supports over 50 hours of continuous operation.
Ergonomic design elements encompass anti-slip rubber casing and lightweight construction, with total device weight limited to 180 grams. The contoured handle design provides comfortable grip for extended use. Capable of operating in temperatures ranging from -10℃ to 50℃, it adapts to diverse environments including workshops, laboratories, and outdoor settings. Particularly valuable for testing precision instruments requiring non-invasive measurement, high-speed rotating components, or electrically charged equipment where physical contact poses risks, this tool delivers reliable data for predictive equipment maintenance strategies.
