| general features & specifications | 一般功能和规格 | | | ar-817 | ar-847 | | temperature measuring range | -10℃～50℃ | -10℃～50℃ | | 测温范围 | -20℃～1000℃(k-type) | | humidity measuring range | 10%rh-99%rh | 5%rh-98%rh | | 湿度测量范围 | | ℃/℉ se-lection | √ | √ | | ℃/℉温度单位转换 | | accuracy of temperature | ±1℃ | ±1℃ | | 温度测量误差 | ±2℃or±3%(k-type) | | accuracy of humidity | ±3%(30-95%) | ±3%(30-95%) | | 湿度测量误差 | ±5%(10-30%) | ±5%(10-30%) | | auto /manualpower off | √ | √ | | 自动/手动关机功能 | | low battery indication | √ | √ | | 低电显示功能 | | backlight display | _____ | √ | | 背光显示选择功能 | | data hold | √ | √ | | 数据保持功能 | | k-type themocouple temperature | _____ | √ | | measuring k型热电偶测试功能 | | temperatureresolution | 0.1℃ | 0.1℃ | | 温度解析度 | | humidity resolution | 0.1%rh | 0.1%rh | | 湿度解析度 | | sampling rate | 2times/sec | 2.5times/sec | | 取样频率 | | temperature max/min measuring | _____ | √ | | 温度Z大Z小值测量功能 | | humidity max/min measuring | _____ | √ | | 湿度Z大Z小值测量功能 | |
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| general characteristics | 一般特征 | | power | 9v alkaline battery | 9v alkaline battery | | 供电 | 9v碱性电池 | 9v碱性电池 | | lcdsize | 48＊30mm | 48.3＊44mm | | lcd尺寸 | | productcolor | ivory | dark gray | | 产品颜色 | 象牙白 | 深灰 | | product net weight | 170g | 251g | | 产品净重 | | product size | 234＊70＊24.5mm | 151＊83＊26.5mm | | 产品尺寸 | |
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| packing information | 包装 | | 包装方式1(中国) | 吸塑 | 彩盒包装 | | 标准外箱容量 | 40 | 20 | | 标准外箱尺寸 | 44.5＊37.5＊33.0cm | 57.1＊51.7＊23.8cm | | 标准外箱毛重 | 10.27kg | 13.82kg | | 包装方式2(other countries) | blister | blister | | standard quantityper carton | 40 | 20 | | standardcartonsize | 44.5＊37.5＊33.0cm | 44.0＊37.1＊33.2cm | | standardcartongrossweight | 10.27kg | 7.63kg | |
