Territory Instruments is an authorised distributor of Cleargas Australia, supplying premium-quality certified calibration gas mixtures for industrial, laboratory, and environmental applications. This calibration gas blend is manufactured to the highest standards to ensure accuracy and reliability in gas detection equipment calibration. Composition: 15ppm H2S, 100ppm CO, 2% CO2, 2.5% CH4 , 18% O2 Balance Nitrogen