Larry there is an attachment called AUTOMATIC LIFT SYSTEM which you can use. You can program up to three levels both lifting and lowering

Dear Larry,
Many different lift mfg. companies do offer
machines,with digital type,fork height indicators,as orig.equipment.I'm not sure
what class of machines you have,but the
technology does indeed exsist.If for instance you have a Class II elec. machine
(single,dbbl reach) or counterbalanced end
control type,I would contact your area dealer about a retro fit option(if avail.)
for your particular truck.Or,if you are considering upgrading your fleet with new
machines,this is a good time to discuss your equipment options,it terms of digital
fork height equipment.In fact with many
newer generation machines,you can also
purchase an upgrade on your truck,that will
not only provide digital fork height readouts,the truck can be programmed to
automatically stop,at pre-programmed heights.In terms of a retrofit option for your
exsisting fleet,I strongly recommend you
work with your local authorized dealer,for
options.It is crucial to have your local factory authorized dealer,communicate directly with your truck mfg.for options
avail.I do not recommend making any upgrades to an industrial truck,without
review and approval by the truck mfg.Your
local dealer sales,or service dept.should be
able to provide you with an on site assesment of your needs.Please let me
know how this works out for you Larry.
Best Regards,
Bill Williams-V.P.
Industrial Truck Solutions