Extech 461995 Combination Photo/Contact Tachometer
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<b>[Product Information]</b><br>
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<li>Item is a Class II laser product, 1mW power output.</li>
<li>Measurements from up to 6-1/2 feet from the target for improved safety and accessibility</li>
<li>Microprocessor based with quartz crystal oscillator to maintain high accuracy</li>
<li>Tachometer memory stores last, max and min readings</li>
<li>Provides wide RPM (photo and contact) and Linear Surface Speed (contact) measurements</li>
<li>Accurate to 0.05 percent with max resolution of 0.1rpm in either photo or contact mode</li>
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