A balance, comprising: a fixed vertical member pivotally adjoined to an upper horizontal member which is pivotally adjoined to a movable vertical member, which is pivotally adjoined to a lower horizontal member, which in turn is pivotally adjoined to the fixed vertical member, wherein the movable vertical member is constrained to move such that it remains parallel to the fixed vertical member and wherein the upper horizontal member and the lower horizontal member have matching coefficients of thermal expansion and matching lengths; an electrically conductive path formed on one of the upper and lower horizontal members; an electrically conductive path formed on the movable vertical member; a first conductive flexure electrically connecting the electrically conductive path on the one horizontal member (306, 308) to the electrically conductive path on the movable vertical member, wherein the first conductive flexure pivotally connects the one horizontal member (306, 308) to the movable vertical member; a second conductive flexure pivotally connecting the one horizontal member (306, 308) to the fixed vertical member, and electrically connecting the electrically conductive path on the one horizontal member (306, 308) to conductive traces or wires affixed to the fixed vertical member, wherein the horizontal members (306, 308) and the movable vertical member are components of a parallel guided balance, wherein plates of a high thermal conductivity material surround the movable vertical member, the upper horizontal member and the lower horizontal member, and wherein the entire balance is housed within an enclosure whose temperature is regulated. a fixed vertical member pivotally adjoined to an upper horizontal member which is pivotally adjoined to a movable vertical member, which is pivotally adjoined to a lower horizontal member, which in turn is pivotally adjoined to the fixed vertical member, wherein the movable vertical member is constrained to move such that it remains parallel to the fixed vertical member and wherein the upper horizontal member and the lower horizontal member have matching coefficients of thermal expansion and matching lengths; an electrically conductive path formed on one of the upper and lower horizontal members; an electrically conductive path formed on the movable vertical member; a first conductive flexure electrically connecting the electrically conductive path on the one horizontal member (306, 308) to the electrically conductive path on the movable vertical member, wherein the first conductive flexure pivotally connects the one horizontal member (306, 308) to the movable vertical member; a second conductive flexure pivotally connecting the one horizontal member (306, 308) to the fixed vertical member, and electrically connecting the electrically conductive path on the one horizontal member (306, 308) to conductive traces or wires affixed to the fixed vertical member, wherein the horizontal members (306, 308) and the movable vertical member are components of a parallel guided balance, wherein plates of a high thermal conductivity material surround the movable vertical member, the upper horizontal member and the lower horizontal member, and wherein the entire balance is housed within an enclosure whose temperature is regulated.