| | AR-841 | AR-851 | | Measuring Range | 0.5～15m | 0.5～15m（single Unit） | | 測量范圍 | 1～60m（Double Unit） | | Accuracy | ±0.5% | ±1.5%（single Unit） | | 測量精確度 | ±2%（Double Unit） | | Measure In Imperial/Metric | √ | √ | | 公英制轉換 | | Operation Condition | 0～30℃ | 0～30℃ | | 工作環境 | 30-70%RH | 30-70%RH | | Laser Pointer Aiming Selection | √ | √ | | 激光定位 | | Low Battery Indication | √ | √ | | 低電顯示功能 | | Computer Area And Volume | √ | √ | | 計算面積和體積 | | Sum Of Length | √ | √ | | 計算長度累加 | | Auto/Manual Shut-off | √ | √ | | 自動/手動關機 | | LCD Backlight | √ | √ | | LCD 背光顯示 | | response Time | 2s | 2s | | 響應時間 | | Measureing Benchmark Setup | √ | √ | | 測量基準設置 | | Single Or Double Unit Measure Selection | _____ | √ | | 單機和雙機測試選擇開關 | | WorkFrequency | 40khz | 40khz（single Unit） | | 工作頻率 | 20khz（Double Unit） | | Key Sound,Beeps For Wrong Reading | √ | √ | | And Reading Confirmation | | 按鍵聲提示,出錯聲音提示 | | 以及確認聲音提示 | |
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| GENERAL CHARACTERISTICS | 一般特征 | | Power | 9VAlkaline Battery | 9V Alkaline Battery | | 供電 | 9V堿性電池 | 9V堿性電池 | | LCD size | 56*28.3mm | 56*28.3mm | | LCD尺寸 | | Product Color | Dark Gray+Yellow | Yellow+Black | | 產品顏色 | 深灰+黃 | 黃+黑 | | Product Net Weight | 205g | 315g | | 產品凈重 | | Product Size | 150*75*46mm | 150*75*46mm | | 產品尺寸 | |
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| PACKING INFORMATION | 包裝 | | 包裝方式1（中國） | 吸塑 | 吸塑 | | 標準外箱容量 | 20 | 20 | | 標準外箱尺寸 | 48.5*43.7*28.0cm | 48.5*43.7*33.2cm | | 標準外箱毛重 | 6.2kg | 9.1kg | | 包裝方式2（Other Countries） | Blister | Blister | | Standard Quantity Per Carton | 20 | 20 | | Standard Carton Size | 48.5*43.7*28.0cm | 48.5*43.7*33.2cm | | Standard Carton Gross Weight | 6.2kg | 9.1kg | |
化工儀器網
化工儀器網