Square Lift Elevator Touch Button SS Flat Marking With Braille Performance Parameter Voltage :DC24V,DC12V Operation Distance :0.3-0.6mm Operation Pressure :2.5-5N Maximum Distance :0.9-1.1mm Life span :≥10 millions Rated Current :12±3mA Panel Thickness :1.5-3mm Work Temperature :-10~50℃ Humidity :45%-90% Certification :ISO9001 Material :Stainless Steel Net Weight :24.5g/pcs Gross Weight :8.25kg/300pcs/CTN Packing Size :520x235x295mm http://www.elevator-component.com/china-square_lift_elevator_touch_button_ss_flat_marking_with_braille-13517613.html Welcome to visit our official website : http://www.elevator-component.com