Check the listing for details. Digital Rotative Tachometer Gauge With Wide Measuring Range And High Resolution. Condition: New. Listed at 162.21 USD. Digital Rotative Tachometer Gauge With Wide Measuring Range And High Resolution（Battery not included in the package）Features* Multifunctional, one instrument combines PHOTO TACH.(RPM) & CONTACT TACH. (RPM , m / min, ft / min ). It can also be applied to the measurement of Frequency, Cycle, Pulse Times, Pulse Distance, User-defined Pulse Distance, etc. * Digital display with no guessing errors. * Wide measuring range and high resolution. * The last value / max. value / min. value will be automatically stored in memory. * The use of durable, long-lasting components, including a strong, light weight ABS-plastic housing assures elegant shape and ease of use. * Use USB data output to connect with PC. * Provide Bluetooth data output choice.SpecificationsMeasuring RangeLaser2.5~99,999 r/minContact0.5~19,999 r/minSurfaceSpeed0.05~1999.9 m/min0.2~6560 ft/minFrequency0.04~1666.65 HzResolutionRotativeVelocity0.1 r/min (0.5~999.9 r/min)1 r/min (Over 100 m/min)SurfaceSpeed0.01 m/min (0.05~99.9 m/min)1 m/min (Over 1000 r/min)0.1 ft/min (0.1~999.9 ft/min)1 ft/min (Over 1000 ft/min)Accuracy±(0.05%n+1d)Sampling Time1.0s(Over 60 r/min)Test Range SelectAutomationMemoryMax Value /Min Value /Last ValueTime BaseQuartz CrystalLaser Tach50~250 mm/2~10 inch(Typical)Detecting DistanceMax 600 mm/24 inchPower Consumption80 mA (Testing)Operating Temperature0~50ºC(32~122ºF)Power Supply4x1.5V AAA Size (UM-4) BatteryDimensionsMain Unit140x72x34 mm(5.5x2.8x1.3 inch)SensorΦ45x195 mm(Φ1.8x7.7 inch)Weight245g/0.540 lb(Not Including Batteries) Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE MicrosoftInternetExplorer4