... in electronic products,instrument measuring appliance and domestic electric appliances and so on ,For example:Computer mouse , ... product,measuring instrument,fuel gaswaterheater,coal gas stove ,small household electrical appliances and so on ItemTpyeRV-21 RV-16 RV ... /s(button type)Action frequencyMechanical:600 opertaions/min Electrical:30 operations/minInsulation resistance100mΩmin.(tested by 500VDC ...