DT-6234B光电式转速表是一款基于先进光电传感技术研发的非接触式转速测量仪器，专为工业设备、机械制造、汽车维修及科研实验等领域设计。它通过光学原理实现无接触测量，有效避免了传统接触式仪器可能造成的设备损伤，同时满足了特殊场景下的安全检测需求。

该转速表具有高精度测量能力，测量范围覆盖2.5 RPM至99,999 RPM，分辨率为0.1 RPM（2.5至999.9 RPM）和1 RPM（1,000 RPM以上），测量准确度为±（0.05% +1个字）。它配备了5位31mm字高的超大液晶显示屏，带有蓝色背光，即使在光线较暗的环境中也能清晰读数。

DT-6234B还具备智能数据处理功能，能够自动记忆最大值、最小值和最后测量值，并可存储多达96组测量数据。其有效测量距离为50mm至500mm，适用于多种旋转物体的测量。此外，该转速表采用6MHz石英晶体振荡器作为时基，量程可自动切换，电源为4×1.5V UM-3电池或外接DC 6V直流稳压电源。

The DT-6234B Photoelectric Tachometer is a non-contact tachometer developed based on advanced photoelectric sensing technology, designed for industrial equipment, mechanical manufacturing, automotive repair, and scientific research experiments. It achieves non-contact measurement through optical principles, effectively avoiding potential equipment damage caused by traditional contact instruments, while also meeting safety inspection needs in special scenarios.

This tachometer is capable of high-precision measurement with a range of 2.5 RPM to 99,999 RPM, a resolution of 0.1 RPM (2.5 to 999.9 RPM) and 1 RPM (above 1,000 RPM), and an accuracy of ±(0.05% +1 digit). It features a large 5-digit LCD display with 31mm high characters and blue backlight, ensuring clear readings even in low-light conditions.

The DT-6234B also has intelligent data processing capabilities, automatically remembering the maximum, minimum, and last measurement values, and can store up to 96 sets of measurement data. Its effective measurement distance ranges from 50mm to 500mm, making it suitable for measuring various rotating objects. Additionally, the tachometer uses a 6MHz quartz crystal oscillator as the time base, with automatic range switching, and is powered by 4×1.5V UM-3 batteries or an external DC 6V stabilized power supply.