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Digital LED Stroboscope Measuring 60~99,999 RPM/Hz,Non-Contact Tachometer Adjustable Strobe Light Timing Speedometer for HVAC Motor Engine Speed Tester, Rechargeable High Accuracy 0.001%: Amazon.com: Industrial & Scientific
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Digital LED Stroboscope Measuring 60~99,999 RPM/Hz,Non-Contact Tachometer Adjustable Strobe Light Timing Speedometer for HVAC Motor Engine Speed Tester, Rechargeable High Accuracy 0.001%: Amazon.com: Industrial & Scientific
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Monarch PLS Pocket LED Stroboscope Kit, with NIST Certificate, 7.75" L x 2.75" W x 2.3" H, Includes Carrying Case: Amazon.com: Industrial & Scientific
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