LZ804,806 Fixed centrifugal tachometerDetailed product description：

LZ804、 806 fixed centrifugal tachometer

Usage conditions: The tachometer works normally in an environment with an ambient temperature of -20 ℃ to 50 ℃ and a relative humidity below 85%
Basic error: The basic error limit of the tachometer is 2% of the upper measurement limit at 20 ℃± 2 ℃
Temperature effect: When the temperature changes from 20 ℃± 2 ℃ to 20 ℃～ 50 ℃, the indication of the tachometer does not change by more than the absolute value of the basic error limit