以下是AR300红外线测温仪/AR-300的产品中英文介绍：

AR300红外线测温仪是一款功能强大的非接触式测温工具，广泛应用于工业、科研、日常检测等多个领域。它通过红外感应和光学原理，能够快速、准确地测量物体表面温度，无需与被测物体直接接触。该测温仪的测温范围为-32℃至400℃，测量精确度在不同温度区间有所不同，-32℃至0℃时为±3℃，0℃至100℃时为±2℃，100℃以上为±2℃或±2%。其测量物距比为12:1，发射率可在0.10至1.00之间调节，分辨率高达0.1℃/0.1℉。此外，它还具备多种实用功能，如℃/℉单位转换、数据锁定、激光定位、背光显示以及自动关机功能。该设备采用9V电池供电，产品净重仅108g，尺寸为150×89×34mm，便于携带和操作。

The AR300 infrared thermometer is a powerful non-contact temperature measurement tool, widely used in industrial, scientific research, and daily inspection fields. It can quickly and accurately measure the surface temperature of objects without direct contact, based on infrared sensing and optical principles. The thermometer has a temperature measurement range of -32℃ to 400℃. The measurement accuracy varies in different temperature ranges: ±3℃ from -32℃ to 0℃, ±2℃ from 0℃ to 100℃, and ±2℃ or ±2% above 100℃. It features a distance-to-spot ratio of 12:1, an adjustable emissivity from 0.10 to 1.00, and a resolution of 0.1℃/0.1℉. In addition, it is equipped with multiple practical functions, including ℃/℉ unit conversion, data lock, laser targeting, backlight display, and automatic shutdown. Powered by a 9V battery, the product weighs only 108g and has dimensions of 150×89×34mm, making it easy to carry and operate.