| 非接触式红外线测温仪 | 
                                            | NON-CONTACT INFRARED THERMOMETER | 
                                            |  |  |  |  | 
                                            | GENERAL FEATURES & SPECIFICATIONS | 一般功能和规格 | 
                                            |  | 
                                            |  | AR-862A | AR-872 | AR-882 | 
                                            | Temperature Range | -18℃~850℃ | -18℃~1250℃ | -18℃~1500℃ | 
                                            | 测温范围 | 0~1568℉ | 0~2282℉ | 0~2732℉ | 
                                            | Accuracy | ±2%or±2℃ | ±2%or±2℃ | ±2%or±2℃ | 
                                            | 测温精确度 | 
                                            | ℃/℉ Selection | √ | √ | √ | 
                                            | ℃/℉温度单位转换 | 
                                            | Distance Spot Ratio | 8:1 | 30:1 | 50:1 | 
                                            | 测量距离比率 | 
                                            | Data Hold Function | √ | √ | √ | 
                                            | 数据保持显示功能 | 
                                            | Auto Power Shut Off | √ AR882 红外线测温仪 | √ | √ | 
                                            | 自动关机功能 | 
                                            | Emissivity | 0.95pre-set | 0.1~0.99(可调) | 0.1~0.99(可调) | 
                                            | 发射率 | 
                                            | Backlight Display Selection | √ | √ | √ | 
                                            | 背光显示选择功能 | 
                                            | Laser Target Pointer Selection | √ | √ | √ | 
                                            | 镭射目标显示选择功能 | 
                                            | Average And Difference Function | √ | √ | √ | 
                                            | 平均值和温差测量功能 | 
                                            | Max And Min Function | √ | √ | √ | 
                                            | zui大、zui小值测量功能 | 
                                            | High Low Temperature Alarm Setup | √ | √ | √ | 
                                            | 高低温报警设定功能 | 
                                            | Data Store/Recall Function | √ | √ | √ | 
                                            | 测量数据储存功能 (断电记忆)
 | 
                                            | Response Time & Wavelengh | 500ms & (8-14)um | 500ms & (8-14)um | 500ms & (8-14)um | 
                                            | 响应时间和响应值长 | 
                                            | Repeatability | ±1%or±1℃ | ±1%or±1℃ | ±1%or±1℃ |