The BACK key lets you go back one step.
If you break or lose the battery cover for your DT500 series, DT402 series, DT400 series, DT300 series,DT100 series, or UT series you will need a replacement cover. With these throttles being discontinued, we no longer have any battery covers availabe. Serpac produces the throttle case we used. You can order a case through them or other big box electronics warehouses.