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Digital tachometer| handheld tachometer | Photo type tachometer| laser type tachometer| Chinese Tachometer|
model:dt-2857 measurement range:2.5¡«99,999r/min resolution:0.1/1 accuracy:¡À(0.05%n+1d) memory: max/min/last value power supply:4x1.5v aa(um-3)battery dimension:145x74x32mm¡¡
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