DESONIX Surface Roughness Tester

1.Buttons:on/off ,zero.mm/inch,data hold,max/min 2.Operating temperature :-10-40°C 3.Humidity:≤80% RH 4.Battery :3.7V lithium battery(Rechargeable battery),Charging /communication interface :USB Type-C 5.Directly measure the maximum,minimum value and range 6.Analog pointer 7.Absolute measurements 8.Data output Measuring range :0-6.5mm/0-6500um Accuracy:±3um Resolution:1um Power supply mode:3.7V lithium battery Charging/communication interface :USB Type-C,RS232 Interface signal Waterproof :IP54 Button function ①On/off key :Press this button to start or shut down the machine ②MM/IN key:short press to convert metric to inch units,long press to change the direction of measurements ③Hold key:short press for data retention,long press to set the current analog pointer to zero ④ZERO/MAX/MIN key:short press to set the LCD data to Zero ,long press to start or exit the maximum value ,mininum value ,range measurement etc.