Material: Plastic+Metal OOTDTY Color: Black Air stress (differential stress parameters Temperature -40 ~ + 100℃ Use of humidity ≤95% load: zero / 125V (48VDC) Work strain value: 100MΩ DC500V (between the and the metallic for shell) Pressure: 2000V 50Hz leakage current <0 (between the terminals and the metallic for shell) Size: 7*8cm/2" Package Contents: 1x Air Pressure