NT-21B
Contact-type tachometer
Range 2.5-99999rpm
Resolution 0.1rpm(2.5~999.9rpm)
1rpm(1000~99999rpm)
Basic precision ±(0.1%n+5d)rpm;(2.5~999.9rpm)
±(1%n+5d)rpm;(1000~99999rpm)
Measurement distance 50-500mm
Max/Min/Avg value
Low battery indicator
LCD backlight display
Solid and ingenious structure.
Model | NT-21B |
Measure range | 0.5~19999 |
Resolution rate | 0.1（0.5~999.9)、1（1000~19999) |
Accuracy rate | 0.05%+1 |
Sample interval | 0.8s(60RPM or above) |
Power | Two 1.5V AAA batteries |
Size | 55.0*33.0*157.8mm |
