Traceable Model 4262 tachometer

Contactless handheld tachometer targets rotating objects and provides instant,accurate results. Optical non-contact measurement is achieved by placing a reflective tape over the rotating object..Red LED light locks onto self-adhesive reflective tape (available in 24 inches) and counts the number of rotations.In two seconds,it provides rock-solid answers from 10 to 99,999 rpm.Five-digit resolution is 0.001,0.01,0.1 or 1,depending on the number of revolutions displayed.The unit is designed for measuring centrifuges,pumps,rollers,shafts,gears,motors and moving surfaces.See chart for accuracy.Hold button to freeze results.Precision quartz crystal ensures stable and repeatable results.LCD digits are 1/2 inch tall and can be read from 10 feet.Low battery appears on the display.Impact-resistant ABS shell protector.To ensure accuracy,our ISO calibration laboratory provides an individually numbered Traceability® Certificate.It represents traceability to standards provided by NIST (National Institute of Standards and Technology).Comes with 9 volt battery (can take thousands of readings over a year).Measures 4-3\/4 x 1-3\/4 x 1-1\/4 inches and weighs 4 ounces.Replacement battery category.No. 1112..