DSPIAE Reciprocating Electric Sanding Pen, DIY Model, Grinding and Polishing Machine, 3 Adjustable Speeds, 10 Light Effects, Pre-cut Sanding Heads

Features:1.The non-contact digital tachometer has high accuracy and uses high-speed laser aiming to ensure precise measurement.
2.Equipped with a large LCD screen, it is easy to read and more convenient for measurements in dark environments.
3.The speedometer has functions for storing the upper limit, minimum and maximum readings, and automatic zeroing.
4.The digital laser tachometer can be used to measure engines, machine parts, lathes, etc., giving it a wide range of applications.
5.Easy to measure, so you can insert the battery into the instrument, press the MEM button, and aim at the object to be measured.
Specifications:Item Type: Laser Tachometer
Model: DT-2234C +
Material: ABS
Battery: 1 x 9V 6F22 (battery not included)
Uses: Can be used to measure engines, machine parts, lathes, etc.Expressed as % reading + least significant figure
Sampling Time: 0.8 seconds
Test Range Selection: Automatic
Time Base: Quartz crystal
Detection Distance: Approx. 50 mm-500 mm / 2.0-19.7 inches
Test range: 2.5 ~ 99999 revolutions per minute (r/min)
Working temperature: 0 ~ 50 ℃ (32 ~ 122 ℉)
Resolution: 0.1 rpm (2.5 ~ 999.9 rpm), 1 r/min (over 1000 r/min)

How to use:Insert the battery into the instrument, press the MEM button, and align it with the object to be tested. (For specific operations, please refer to the manual)
Package List: 1 x Laser Tachometer (battery not included) 3 x Reflective Strips 1 x Storage Bag 1 x Manual