AC/DC Magnetic Meter DC 300mT 3000mT 3000G 30000G/AC 150mT 1500mT 1500G 15000G Accuracy DC +/-(5 Percent + 10 digits)/AC +/-(5 Percent + 20 digits) Frequency Range (Hz) 50/60 Auto Power Off with Disable Data Hold Hall Effect Sensor with ATC Min/Max N Pole/S Pole Indicator PC Interface Zero Button For DC Monitors AC and DC Magnetic Fields Generated From Industrial Machines and Other Power Sources Backlit LCD Display