中文介绍：美国雷泰（Raytek）ST-20红外测温仪是一款性能卓越的非接触式测温工具。它采用先进的红外测温技术，能够快速、准确地测量物体表面温度，测温范围为–32℃至535℃。该设备的光学分辨率比为12:1，这意味着用户可以在相对较远的距离测量较小物体的温度。其单点激光瞄准系统可帮助用户精确对准目标，背光照明显示屏则使在昏暗环境中读取数据变得轻松。此外，ST-20还具备温度读数保持功能，可将测量结果保持7秒，方便用户记录和查看。

英文介绍：The Raytek ST-20 infrared thermometer is an outstanding non-contact temperature measuring tool from the United States. Utilizing advanced infrared temperature measurement technology, it can quickly and accurately measure the surface temperature of objects, with a temperature range of -32℃ to 535℃. The device has an optical resolution ratio of 12:1, allowing users to measure the temperature of smaller objects from a relatively greater distance. Its single-point laser aiming system helps users to precisely target the object, and the backlit display screen makes it easy to read data in dim environments. In addition, the ST-20 features a temperature reading hold function, which can keep the measurement result for 7 seconds, facilitating users to record and view the data.