This instrument is mainly used to measure the speed of diesel engines, and is also suitable for measuring the speed of locomotives and other types of engines.

Specification
Usage conditions: Environmental temperature 0-60 ℃, relative humidity ≤ 85%
Basic error: When the ambient temperature is 20 ± 2 ℃, the basic error of the tachometer is ± 1.5% of the upper measurement limit.
Temperature effect: When the temperature changes by 10 ℃, the additional error of the indication does not exceed the absolute value of the basic error.
Return deviation: The reading of the tachometer shall not exceed the absolute value of the basic error.
Attachment: Each watch strap comes with a flexible shaft, which is available in three lengths: 230mm, 275mm, and 850mm. Users can choose one of them.
specifications