uxcell Contact Speed Digital Tachometer and Auto Ranging LCD Display

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About Uxcell Contact Speed Digital Tachometer And Auto

Description:- Wide measuring range and high resolution.- Environment friendly ABS plastic case.- The last value(LA), maximum value (UP), minimum value(dn) will be stored into the memory automatically and can be obtained by pressing Memory Call Button.- High visible LCD display gives RPM reading exactly with no guessing or errors and saves battery energy.- This tachometer used the exclusive one chip Micro - Computer LSI circuit and crystal time base, offer the high accurate measurement and fast sampling time. Specification:Time Base: 6Mhz Quartz crystal.Display:5 digitals,digital numbers up to 0.7 inches/18mm.Test Range Select:Automatic.Memory:Last value, Max. Value,Min. Valuecan store 99s date.Test Range:2.5 to 99,999RPM(r/min).Resolution:0.1RPM(2.5 to 999.9RPM);1RPM(over 1000RPM).Accuracy: +(0.05% + 1 digit)Sampling Time: 0.8s (over 60 RPM);0.5s (over 120 RPM)Effective Detecting Distance:2 to 20 inches/50 to 500mm(Laser)Operating Temperature: 0 To 50 Celsius (32 to 122 Fahrenheit)Battery:4x1.5V AA(included)Size:6.4x2.9x1.5 inches/164x74x37 mmNet Weight:approx. 173gPower Consumption: Approx. 45mA (operation);Approx. 35mA (LED);Approx. 30mA (Photoelectric). The non-reflective area must always be larger than the reflective area,if the shaft is reflective,it must be covered with black tape or black paint before attaching tape.Shaft surface must be clean and smooth before applying tape.