1.Using high-quality electronic components, the induction accuracy is high. 2.The measurement range has high optical accuracy, and the accuracy can reach 0.1% 3.Has good mechanical processing, heat treatment performance is stable and reliable 4.It has strong compressive strength, little influence by temperature, long service life and stable performance 5.High pressure protection, instant pressure 150KG to prevent oil leakage Part Number:31Q4-40830 31Q440830 Fitment:For Excavator R210-3 R210-5 R210-7 R210-9 Colour:Silver Material:Metal Package Contents: 1 x Pressure Sensor Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.