1. Op in high precision*op 14.7 (+0.4 , -0.4) mm ,.2mm before action . 2. Good impact resistance *impact resistance: max1000/ s *with the limit design, resist the strong impact 3 good heat resistance *max t: 105 *it can be customized within 150 4.Vareity types , customerize available. *from1a~21a (contact material can be ag, agcdo, agau) * vareity of mechanical transmission , *contact type : transition , normally open, normally closed *variety of contact terminals and connection* choosy terminal connector *a variety of models with low operating force to high force are sensitivity. 5. High strength on shell *it can keep 6kgf.Cm from burst when install 6. Certification ccc 7.Fit rohs 1000pcs/carton