KL-006 Tachometer Technical Specification: 1.Measuring range:20～50000r/min 2.accuracy:2x10-4xN+/-1digit 3.store time:no limit 4.adoption time:1s(automation) 5.weight:300g(include battery) 6.measuring distance:50～400mm 7.display:5-digital LCD 8.temp:0～50℃ 9.battery: 4x1.5（DC）alkalinity battery 10.dimension: 78mm(L)x38mm(W)x180mm(H)