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                      | 1.Measurement units m/s ,km/h, ft/min, knots, mph, Temperature: ºC or ºF 2.Data hold Freezes reading on the display
 3.ball-bearing
 4.Memory Recall:Record and Recall MAX and MIN readings
 5.Auto Power off:After 15 minutes with disable feature
 6.Operating Temperature: 32 º F to 122 º F (0 º C to 50 º C)
 7.Operating Humidity: Max.80% RH
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