AC/DC Magnetic Meter/Data Logger 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 Stores Readings On An SD Card In Excel(R) Format with User Selectable Sample Rate Manually Store/Recall 99 Readings Hall Effect Sensor with ATC N Pole/S Pole Indicator Zero Button For DC Data Hold Min/Max Auto Power Off with Disable PC Interface