The Mag-13 U-TPU from Bartington Instruments is a Magnetometer with Mass 157 gms, Measurement Range ±70 to 1000 µT, Linearity 0.0015%, Frequency Response DC to 1 kHz, Supply Voltage 12 to 17 V. Tags: Three Axis Magnetometer, Fluxgate Magnetometer. More details for Mag-13 U-TPU can be seen below.