Single crystals of n‐type Bi2Se3grown by the Bridgman technique are found to make excellent Hall effect magnetometers capable of repeated cycling to liquid helium temperatures. Plots of Hall resistivity, &rgr;yx, versus magnetic fieldBto 11 tesla deviate from linearity by less than ±0.8% for all temperatures between 1.1 and 300 K. Furthermore, the slope of the &rgr;yxversusBcurve varies by less than 2% in the region 1.1 to 78 K.