The special designed Load Sensor (PAT. PEND.) makes the one-hand handling without adjustment in operation.The Load Sensor memorize the hanging work and to keep it on no-gravity.After the memorizing, the work can be easily moved to any level or any place by touching the work itself.This unique system changes the present accurate handling work, such as the assembling parts, the attaching the work to machine tool, the installation and centering work etc.