... than 60 metersOpen method: Read card, remote controller, manual operation.Protection rate: IP44Material: A3 steel, stainless steelCase’s thickness: 2.0 mm (can ... nonconstant velocity run mode, like start with low speed, fast in the middle and slow by end, operation stable, greatly ... improve the accuracy of the products, and increase its using life.Pole react the lift, cease and ground sensor ...