Photoelectric digital tachometer meter， stable performance， safe and reliable <br />The whole circuit design with microcontroller core， photoelectric rotational speed sampling process， unique appearance<br />Rotational speed range: 10 ~ 99999r / min; Count range: 0 to 99999<br />Can be used to measure rotational speed and count in schools， factories， laboratories， research institutes， vehicle maintenance testing and other fields<br /><br /><br /><br />Specifications<br />Range<br />Best Accuracy<br /><br />Model<br />　<br />UT371<br /><br />RPM Range<br />10RPM～99RPM<br />±(0.03%）<br /><br />100RPM～999RPM<br />±(0.04%＋2）<br /><br />1000RPM～9999RPM<br />±(0.04%＋2）<br /><br />10000RPM～99999RPM<br />±(0.04%＋2）<br /><br />Counts<br />Range：0～99999<br />√<br /><br />Max.Input Frequency：10KHz，Bandwith:5%<br /><br />Target Distance<br />50mm ～200mm <br />√<br /><br />Features<br /><br />Display Count<br />　<br />99999<br /><br />Data Hold<br />　<br />√<br /><br />Auto Power Off<br />Around 15 Minutes<br />√<br /><br />Low Battery Indication<br />≤4.8V<br />√<br /><br />MAX Mode<br />　<br />√<br /><br />MIN Mode<br />　<br />√<br /><br />AVG Mode<br />　<br />√<br /><br />General Characteristic <br /><br />Power<br />1.5V Alkaline Batteries（LR6）X 4 <br /><br />LCD Size<br />53mm X 41mm<br /><br />Product Color<br />Red and Grey <br /><br />Product Net Weight<br />100g <br /><br />Product Size<br />184mm X 56mm X 34mm <br /><br />Standard Accessories<br />Batteries，Reflecting<br /><br />Standard Individual Packing<br />Blister， English Manual<br /><br />Standard Quantity Per Carton<br />20 PCs<br /><br />Standard Carton Measurement<br />420mm X 305mm X 370mm (0.047 CBM Per Standard Carton)<br /><br />Standard Carton Gross Weight<br />5Kg <br />1 x Tachometer tester<br />1 sheet/10pcs x Reflective paper <br />1 x English manual<br />Card paper blister packaging<br /><img src="http://img6.eachbuyer.com/x9/p100/cb579_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_6.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_7.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/cb579_8.jpg" />