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 |