超声波测距仪价格：0.00元/ 供货总量：5000 有效期至：长期有效
| 型号 | AR-841 | AR-851 | | Measuring Range | 0.5～15m | 0.5～15m(single Unit) | | 测量范围 | 1～60m(Double Unit) | | Accuracy | ±0.5% | ±1.5%(single Unit) | | 测量精确度 | ±2%(Double Unit) | | Measure In Imperial/Metric | √ | √ | | 公英制转换 | | Operation Condition | 0～30℃ | 0～30℃ | | 工作环境 | 30-70%RH | 30-70%RH | | Laser Pointer Aiming Selection | √ | √ | | 激光定位 | | Low Battery Indication | √ | √ | | 低电显示功能 | | Computer Area And Volume | √ | √ | | 计算面积和体积 | | Sum Of Length | √ | √ | | 计算长度累加 | | Auto/Manual Shut-off | √ | √ | | 自动/手动关机 | | LCD Backlight | √ | √ | | LCD 背光显示 | | response Time | 2s | 2s | | 响应时间 | | Measureing Benchmark Setup | √ | √ | | 测量基准设置 | | Single or Double Unit Measure Selection | _____ | √ | | 单机和双机测试选择开关 | | WorkFrequency | 40khz | 40khz(single Unit) | | 工作频率 | 20khz(Double Unit) | | Key Sound,Beeps For Wrong Reading | √ | √ | | And Reading Confirmation | | 按键声提示,出错声音提示 | | 以及确认声音提示 | |
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