Changsha tachometer, tachometer prices, 星枫 tachometer instrument provided by 星枫 instruments. Nanchang Xing Feng Instrument Co., Ltd. (www.xingfengyiqi.com) is Nanchang quality certified company Commercial Union, with Germany Knicks, Plymouth Seth Apresys, Hilti Germany, Switzerland, Leica and other brands, has a good reputation, honesty, service-oriented "business alliance Service" icon on the page, we will be happy to serve you! Model: Testo-470 Product Name: Testo-470 tachometer Price: 0 Brand: Germany Testo product categories: physical properties testing equipment Tachometer Testo-470 optical and mechanical dual tachometer. Speed ??can be measured by a mechanical-contact sensors mounted on a mechanical speed post. · Single-handed operation · measure speed, velocity and length · "low battery" warning Technical data probe types using optical reflection principle of speed measurement range +1 ... +99999 rpm Accuracy ± 0.02% of mv (+1 ... + 99999 rpm) Resolution 0.01 rpm (+1 ... +99.99 rpm); 0.1 rpm (+100 ... +999.9 rpm); 1 rpm (+1000 ... +99999 rpm) Operating temperature 0 ... + 50 ° C Storage temperature -20 ... +70 ° C Battery Type 2 AA batteries Dimensions 175x60x28 mm Weight 190 g 1 year warranty Model: DT602 Product Name: DT602 model aircraft tachometer Price: 0 Brand: Domestic Product Category: physical properties testing equipment two leaf propeller: 100 ~ 60000RPM trefoil propeller: 100 ~ 40000RPM four leaf propeller: 100 ~ 30000RPM DC voltage: 0.001 ~ 19.99V Resistance: 0 to 2000 ohms Size: 185 X 70 X 25mm tachometer principle