Features: Can display independent three single-axis (X,Y,Z) magnetic field readings or tri-axial total magnetic field reading With built-in datalogging capacity With Data Hold (HOLD), Maximum Hold (MAX) and Minimum Hold (MIN) function CE&ROHS marking and Certificate of Calibration Comes with USB PC Interface software Auto range or manual range Time and calendar function Low battery indication Auto power off function Single data record function Specifications: Continuity data logging interval range: 0 seconds(no data logging) to 99 hours, 99 minutes and 99 seconds Datalogging capacity with memory size: 9999 data sets Display: 4 digits Triple LCD Display Range: 20/200/2000 mG, 2/20/200µT Resolution: 0.01/0.1/1 mG or 0.001/0.01/0.1µT Frequency response: 30Hz ~ 2000Hz Sensor: Triple Axis (X, Y, Z) Accuracy: 20mG/2μT±(3.0%+30dgt) at 50Hz/60Hz. 200mG/20μT and 2000mG/200μT ±(2.5%+5dgt) at 50Hz/60Hz or ±(5%+5dgt) at(30Hz~2000Hz) Overload: LCD display ""OL"" Sample rate: 2.5 times per second Power Supply: 1 x 9V Battery(included) or external AC to DC adapter(not included) Set Includes: 1 x Tri-axial Magnetic Field Meter 1 x User Manual 1 x CD software and USB Cable 1 x 9V Battery 1 x Carrying Pouch 1 x Certificate of Calibration 1 x Factory Standard Paper Box