SM2234A Non-Contact 99999 RPM Digital Tachometer with 18mm LCD Function Annunciation<br /><br />Main Features:<br />● This tachometer is a high quality instrument to measure the Rotational Speed (RPM) with wide measuring range and high resolution.<br />● It is featured with high accuracy measurement， quick measuring time and long detecting distance up to 500 mm (20 inch) with Laser.<br />● This tachometer is very easy to use by applying a reflective mark (included in package) on target object， then aim at the mark by Laser beam. <br />● This tachometer has wide range of applications: Measuring rotating speed of machine， motors， model cars， wheels， lathe for metal or wood cutting work etc.<br />● Measures the rotational speed with a visible red light beam from a powerful LED.<br />● High intensity class II laser measures from 2.5 - 99，999 RPM.<br />● Extra-large 5-digit LCD display， high accuracy of + / - 0.05 percent.<br />● Auto zero adjustment， stores last， minimum， and maximum readings， values can be displayed by turn anytime.<br />● Value will be automatically stored in memory and can be displayed by turn anytime.<br />● The housing has been carefully shaped to fit comfortably in either hand.<br />● Powered by 3 x AA battery (included)<br /><br />    Specifications<br />General<br />  Model: SM2234A                                                  <br />                        Material: Plastic                                                  <br />                        Type: Measuring tools                                                  <br />                        Certificate: CE， RoHS                                                 <br />Classification<br />  Professional instruments: Clamp Meter                                                 <br />Specification parameter<br />  Primary functions: Measuring mechanical rotational speed                                                  <br />                        Features: Non-Contact Measurement                                                  <br />                        Measurement range: 2.5 to 99999 RPM                                                  <br />                        Working Mode: Instant Measurement                                                  <br />                        Maximum Show Value: 99999 RPM                                                  <br />                        Sampling Time: 0.8 second                                                  <br />                        Resolution: .1 RPM(2.5 to 999.9 RPM)， 1 RPM(1000 to 99999 RPM)                                                  <br />                        Accuracy: ± (0.05 percent+1digital)                                                  <br />                        Working Temperature: 0 to 40 degree                                                  <br />                        Laser Beam: Classic 2， 2-5mW                                                  <br />                        Working Power: 1.5V AA battery                                                  <br />                        Scope of application: Agricultural， Home appliance， Industrial， Office， Education                                                 <br />Weight and Size<br />  Product Weight: 0.136 kg                                                  <br />                        Package Weight: 0.325 kg                                                  <br />                        Product Size: 16 x 7 x 3.5 cm / 6.29 x 2.75 x 1.38 inches                                                  <br />                        Package Size: 17.5 x 11 x 5 cm / 6.88 x 4.32 x 1.97 inches                                                 <br />Package Contents<br />  Package Contents: 1 x SM2234A Photoelectric Digital Tachometer， 3 x Reflection Tape， 3 x 1.5V AA Battery， 1 x Carry Bag， 1 x English Manual                                                 <br /><br /><br /><br />                                                                                            <br />