Brand new and high quality.<br />Easily portable.<br />Photo type<br />Model: SM-2234A<br />Look no further. Outstanding product quality， that's exceptionally built. Best of all， its very affordable price. Buy one right away.<br />1. Measure range: 2.5-99.999RPM<br />2. Resolution: 0.1RPM (2.5-999.9RPM )<br />1RPM ( > 1.000RPM )<br />3. Accuracy: ± (0.05%+1 letter)<br />4. Sampling rate: 0.5 times/s ( >120 RPM )<br />5. Measure range choice: auto shift<br />6. Effective distance: 50mm-500mm<br />7. Power supply: 3 x AA battery <br />8. Dimension: 16 x 7.2 x 3.7 cm <br />1 x Tachometer<br />1 x Screw<br />3 x Sticker <br />1 x English user manual<br />In original package<br /><img src="http://img6.eachbuyer.com/x16/p33/bb418_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x16/p33/bb418_7.jpg" />