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: 0.3 x 0.9cm / 0.12' x 0.35'(D * L);Overall Depth: 5.5cm / 2.2' Material: Plas