Main technical parameters:
Measurement accuracy: 1 level.
Using condition: tachometer in the environmental temperature from-20~50℃,
relative humidity in less than 85% of the normal work of the environment.
The basic error: tachometer in 20℃±2 ℃, basic error for measurement of the upper limit value of the ±2%.
Temperature effect: when the temperature changes from 20℃ to -20~50℃,
tachometer and values are not more than basic error limit absolute value.
Measuring range can be customized.
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