and upper leftwardly extending horizontal base flange 45 mounting flange 44 is fixably connected to pan tilt head base 41 pyrometer 21 is attached to pyrometer mounting plate 46 mounting plate 46 is in turn pivotally mounted to base flange 45 at a pivot connection 55 not shown which allows the sensing end 56 of pyrometer 21 to pivot left right up and down thus the front of pyrometer mounting plate 46 may be moved in both the horizontal and vertical direction relative to base flange 45 pyrometer mounting plate 46 is a generally flat planar member orientated on the same plane as base flange 45 vertical and horizontal adjustment of pyrometer 21 is effectuated by manual adjustment of pyrometer vertical adjustment 48 and horizontal adjustment 49 as shown in fig2 b vertical adjustment 48 includes vertical adjustment block 50 and vertical adjustment screw 51 vertical adjustment block 50 is a solid rectangular member fixably mounted to the rear of pyrometer mounting plate 46 a threaded throughbore extends down through vertical adjustment block 50 and in turn through pyrometer mounting plate 46 this threaded throughbore is orientated in the vertical direction vertical adjustment screw 51 is threaded for movement through said vertical throughbore such that rotation of vertical adjustment screw 51 in the clockwise direction will move vertical adjustment screw 51 down through vertical adjustment block 51 and out the bottom of pyrometer mounting plate 46 as the bottom of vertical adjustment screw 51 protrudes from the bottom of the vertical throughbore in pyrometer mounting plate 46 it contacts the top of fixed base flange 45 thus if adjustment screw 51 is adjusted further.