I have heard that it would cost over $5000.oo per unit to order another Handrail Sensor device on the O&K unit. That is because they are considerd obsolete. Question can a Kone E series Handrail Sensor and board be adapted to retrofit into the O&K Escalator? I know that there is a voltage difference- O&K is 12vdc and the Kone is 24vdc. That can be a simple modification.Can you provide me with some direction. Thanks