以下是TM-6902D温度表的产品中英文介绍：

TM-6902D温度表是一款实用的数字式测温仪器，具备3 1/2位LCD显示屏，最大显示数字为1999，读数清晰直观。其测量范围广泛，从-50℃到750℃，能够满足多种环境下的温度测量需求。在不同的温度区间，该温度表的测量准确度也有所不同：在-50℃至-20℃时，准确度为≤4℃；-20℃至0℃时，准确度为≤3℃；0℃到750℃时，准确度为（0.75%rdg+1℃）。此外，它还具备读值锁住功能，方便用户记录和查看特定时刻的温度数据。低电显示功能则可提醒用户及时更换电池，避免因电量不足影响测量。该温度表使用9V碱性电池供电，尺寸为116×70×29mm，便于携带和操作。其工作环境温度范围是0℃～40℃，相对湿度为0～70％Rh，产品颜色为铁灰。

The TM-6902D thermometer is a practical digital temperature measuring instrument, featuring a 3 1/2-digit LCD display with a maximum display of 1999, providing clear and intuitive readings. It has a wide measurement range from -50℃ to 750℃, making it suitable for various temperature measurement needs. The accuracy of the thermometer varies in different temperature ranges: it is ≤4℃ between -50℃ and -20℃; ≤3℃ between -20℃ and 0℃; and (0.75%rdg+1℃) between 0℃ and 750℃. Additionally, it is equipped with a reading lock function, which allows users to record and view the temperature at specific moments. The low battery indication function can remind users to replace the battery in time to avoid measurement interruptions due to insufficient power. Powered by a 9V alkaline battery, the thermometer has a compact size of 116×70×29mm, making it easy to carry and operate. It can work in an environment with a temperature range of 0℃～40℃ and a relative humidity of 0～70％Rh, and the product color is iron grey.