Approved by Lloyds Register and American Bureau of Shipping for thermal imaging and ultrasonic hatch watertighness integrity testing onboard superyachts and other vessels - used to prevent electrical outages and identify engine room temperatures in excess of 220C to prevent fuel-oil ignition; whereas ultrasonic's is employed to monitor seal effectivness to ensure watertight and weathertighness to hatch doors, hull garage doors. Services are available worldwide and just a call away.