US Patent 7944197 Clamp meter with rotary mechanism for clamp jaws

The present invention provides a clamp meter with clamp jaws whose position is adjustable in different planes with respect to the plane of the main body of the clamp meter at various fixed angles, thereby helping the user to measure the current in the conductors which are disposed in tight physical spaces such as an electrical cabinet or electrical panel, or placed in awkward positions such as overhead locations. The present invention allows the user to operate the instrument and also read the display in all positions of the clamp jaws.