The mark consists of a triangular design, wherein the words GAS LEAK DETECTOR are across the triangular design with the words GAS and LEAK positioned about centrally above the word DETECTOR, wherein a line forming part of a left side of the triangular design is not a complete line and includes an arrow head that ends below the first "E" of the word DETECTOR, wherein the line forming part of the left side of the triangular design does not extend above the word GAS, wherein a line forming the right side of the triangular design also is not complete and includes a break where the letters "LE" of the word LEAK and the letters "TO" of the word DETECTOR appear, wherein part of the line forming the right side of the triangular design extends below the word LEAK and part of the word DETECTOR, and wherein part of the line forming the right side of the triangular design extends above the word LEAK and part of the word DETECTOR.