The Crown SP 3500 Series fuel cell-powered stockpicker has an on-board display with a fuel cell hydrogen level indicator that allows parameters to be set for a low-fuel warning; a lockout feature prevents lift when the fuel level reaches a predetermined level below the initial low-charge alert. The Crown Access 1 2 3 system control is connected directly to the fuel cell power unit; it manages all truck functions and proactively facilitates 2-way communication with the operator.  

Crown Equipment Corporation;