Accuracy: Class 2.5;Meter Face Size(Approx): 6.4 x 5.6 x 1.1cm / 2.5' x 2.2' x 0.43'(L*W*T) Thread Size: 0.28 x 0.75cm / 0.11' x 0.30' (D*L),0.38 x 0.8cm / 0.15' x 0.3' (D*L);Overall Dep