The SXL-MAGSIM-01 from SPUTNIX is a Magnetic Field Simulator with Range ±150 µT, Magnetometer Sensitivity Not worse than 0.02 µT, Magnetic Field Uniformity 400 Dia mm (Sphere), Angular Orientation 0 to 4p steradian, Coil Size 2 m. Tags: Helmholtz Coil, Square Coil. More details for SXL-MAGSIM-01 can be seen below.