Pyle PST43 Precision Non Contact Laser Tachometer with Extended RPM Range， Digital LCD Screen and Protective Case</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>5 digit lcd display - laser output power: <1Mw class ii - battery: 4 x 1.5V aa (not included)</li><li>Range of 2.5 - 99，999 rpm - sampling time: 1.0 seconds (over 60 rpm) - case， reflection tape and manual are included.</li><li>Measures at a distance of up to 3.5 ft. - memory: last value， max value， min. Value</li><li>5 Digit LCD Display - Laser Output Power: <1mW class II - Battery: 4 X 1.5V AA (Not Included)</li><li>Range Of 2.5 - 99，999 RPM - Sampling Time: 1.0 Seconds (over 60 RPM) - Case， Reflection Tape And Manual Are Included.</li><li>Measures At A Distance Of Up To 3.5 ft. - Memory: Last Value， Max Value， Min. Value</li><li>Resolution: 0-1000 RPM/0.1RPM; 1，000-9，999 RPM/2.5 RPM; >10，000 RPM (0.025%+1dgt) - Time base: Quartz Crystal;</li><li>Automatic Range Selection - Circuit: Exclusive One-Chip LSI Circuit;</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41AUUtFIFZL.jpg' noproxy></br>