1)Low battery indication 2)Overload indication 3)Range display (20,200,2000) ... =10,000 G, 1uT=10 mG, 1 G=1,000 mG Specifications - Display: 3-1/2 digits LCD, maximum reading 1999.- ange: ... 200/2000 mG,20/200µT.- Resolution: 0.1/1 mG or 0 ... .01/0.1 µT.- Frequency response: 30Hz to 300Hz.- Sensor: Single Axis.- Accuracy: +/-(2.5%+6dgt) at 50Hz/ ...