Model: DT-2857 Product name: Laser Tachometer DT-2857 Price: 0 Brand: Domestic Product categories: physical properties testing equipment measuring range: 2.5 to 99 tachometer outlets, 999 rev / min Accuracy: ± (0.05 % n +1 d) Resolution: 0.1 / 1 Memory: max / min / last value. Measuring range: 2.5 to 99,999 rev / min Accuracy: ± (0.05% n +1 d) Resolution: 0.1 / 1 Memory: max / min / last value. Measuring range: 2.5 to 99,999 rev / min Accuracy: ± (0.05% n +1 d) Resolution: 0.1 / 1 Memory: max / min / last value. Model: DT2240D Product Name: DT2240D disk tachometer Price: 0 Brand: Domestic Product Category: Physical properties testing equipment Measuring range: 5.0 ~ 99990RPM Accuracy: ± 0.05% 4-digit red LED display automatic shift is required with proximity switches or photoelectric switch Size: 96 X 48 X 104mm [] _ ??tachometer tachometer tachometer direct _ 星枫 instruments provided by 星枫 instruments. Welcome to consult Nanchang 星枫 Instrument Co., Ltd. (www.xingfengyiqi.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Zhengjing