Accuracy : 0 and 90o<=0. 10o
Other degree : <=0. 15o
Resolution : 0. 05o
Range : 4* 90o( 0~ 360o)
Repeatability : <=0. 10o
Battery : 3V ( 2 pieces AAA battery)
Working current : <=8mA
Working temperature : 0~ 40 oC
Relative humidity : <=80%
Automatic readout flipping right side up for the convenient reading when the protractor is upside down.