| GENERAL FEATURES & SPECIFICATIONS | ? | 一般功能和规格 | | | AR-827 | AR827A | AR-837 | | Temperature Measuring Range | -10℃～50℃ | -10℃～50℃ | -10℃～50℃ | | 温度测量范围 | | humidity Measuring Range | 10%RH-99%RH | 10%RH-99%RH | 5%RH-98%RH | | 湿度测量范围 | | ℃/℉ Selection | √ | √ | √ | | ℃/℉温度单位转换 | | Accuracy of temperature | ±1℃ | ±1℃ | ±1℃ | | 温度测量误差 | | Accuracy of humidity | ±3%(30-95%) | ±3%(30-95%) | ±3%(30-95%) | | 湿度测量误差 | ±5%(10-30%) | ±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 | | Data Hold | √ | √ | √ | | 数据保持功能 | | Temperature Resolution | 0.1℃ | 0.1℃ | 0.1℃ | | 温度解析度 | | Humidity Resolution | 0.1%RH | 0.1%RH | 0.1%RH | | 湿度解析度 | | Sampling Rate | 2times/sec | 2times/sec | 2.5times/sec | | 取样频率 | | Temperature & Humidity Alarm Setup | _____ | √ | √ | | 温湿度报警设置功能 | | Max/Min Measurement | _____ | √ | √ | | 最大/最小测试功能 | | Average Measurement | _____ | √ | _____ | | 平均值测试功能 | | Large LCD Dual Display | _____ | _____ | √ | | 大LCD双显示 |
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