A transimpedance amplifier device. A hook is provided in the housing of the main body, and capable of being manually operated to change a position thereof to one of a retracted position and a pull-out position. A dense array of micro-jet nozzles can be fabricated on the fins surface pointing to the flow direction of the air movement in order to induce increase airflow. Skid design concepts are employed, wherein a skid system carries various pre-assembled components for transport, storage and operation.