测量方式: Optical (using visible red light) 测量范围: 30 to 50000 r/min 测量精度: ±1 r/min (30 to 12499 r/min) ±2 r/min (12500 to 24999 r/min) ±4 r/min (25000 to 50000 r/min) 测量距离: 20 to 300mm 显示: LCD, 5-digit 数据保持: for 1 minute after completion of measurement 电源以及寿命 3 type AAA batteries / approx. 20 hrs 工作温度: 0 to +40°C 外形尺寸: 123(W) x 23(H) x 58(D) mm 质量: approx. 110g
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