... 3.OEM or ODM available 4.vertical filp detecting Roll Ball Tilt Switches SW-200DDNElectrical Characteristics: Voltage: <12V ... . Passed ISO9001:2008, and ROHs certification. 6. Over 10 years professional manufacture experience How to place an order ... Ball, Tube, Spring,Type Vibration sensor switches /Roll ball tilt switches /Optical roll ball sensor/ Mercury switchesFinish Nickel-plated, silver-plated ...