... pretty competitive price this control board for two speed elevator, hydraulic elevator, and escalatorMain features:·model no.: CA100·CPU with ... Suitable for elevator of single speed, 2 speed, or hydraulic type, with reserve for VVVF updating.·main board self- ... gray code.·suitable for motor hoist, traction machine, winch, hydraulic lifting platform.·suitable for auto door, manual door. ·Bistable switch ...