Portable digital ammeter tachometer motor contact

*This product comes from China description instrument. It is a contact digital tachometer with stable performance, high reliability and good safety performance. The main component of the instrument is a small high-speed integrated chip. The gauge will display the speed from 50 rpm to 19999 rpm. The LCD screen is backlit to allow measurements to be performed and read in low light conditions. Features: This is a digital contact tachometer with stable performance, high reliability and good safety performance. Ergonomic design is adopted, and the body adopts advanced secondary injection molding process. The design is beautiful and compact, in line with EU safety standards and environmental protection design such as Rons / reach. Integrated chip speed Supports 100 data storage sets, data storage unit conversion, maximum / minimum / average measurement. Support M / m in M / sec ft / min ft / sec unit selection in / min. support backlight display, even in low light or dark environment. LCD backlight ensures data reading in the dark. Support speed display from 50 rpm to 19999 rpm, with accuracy of ± 0.03% + 2D. It supports power-off indication and undervoltage indication of battery 30 second automatic shutdown function. Small enough to be operated with one hand. The tachometer has the advantages of convenient operation and maintenance and superior performance. Equipped with 5 contact rollers for easy adjustment and measurement, it is widely used in automobile machinery laboratory, automobile machinery manufacturing, engine, etc. budget: measurement range: 50 ~ 19999 rpm, resolution: 0.01 RPM (50 ~ 99.99 RPM) / 0.1 RPM (100 ~ 9999.9 RPM) / 1 RPM (10000 ~ 19999 rpm), accuracy: ± (0.03% ± 2D) Measuring distance: not applicable automatic shutdown: 30s data recording: 100 sets of functions: maximum value minimum value average value data holding indication battery low shutdown automatic selection unit: M / m in M / sec ft / min ft / sec in / min power supply: 4 * 1.5V battery AAA (excluding) altitude: 2000m Working temperature: 0 40 (32 ~ 104) relative humidity: = 80% RH article size: approx 165 * 60 * 28 mm / 6.5 * 2.4 * 1.1 inch article weight: approx 146 g / 5.16 oz package weight: approx 305g / 10.76oz package size: approx 19 * 11 * 6cm / 7.5 * 4.4 * 2.4in packing list: 1 * digital tachometer 2 * crazy measuring wheel 2 * touch measurement prompt 1 * extension rod 1 * portable bag 1 * user manual (English) specification: * about products: all our prices are in local currency.: all our products are in local currency Brand new.: * the invoice is attached to the package.: * shipment: all products are shipped from the warehouse in China. The delivery time is about 20 to 30 days after confirming payment. In some cases, your order may be extended to 30 days due to customs reasons.: * feedback: if you have any problems with your order, please contact us after sales, and we will try our best to satisfy you. Please do not leave negative comments or claims before we solve your problems: