BESTSTAND. SIT-TO-STAND LIFT. Model: SA500 / SA400. Ensure the product has been assembled according to the instructions in this manual. Bestcare presents the BestStand Series of sit-to-stand patient lifts, a solution for patient transfers between bed, chair or commode. The lift. manual. All operators should read and understand the instructions for safe and In this manual the user refers to the patient or resident and may be used.The BestStand® SA400H and SA400HE allow the patient to be lifted and transferred safely with minimal physical effort provided by the operator.