Given the importance of gas detection equipment, it's crucial to ensure that it is working correctly. Sensor life expectancy can vary depending on the gas that it is being exposed too. The sensors for more exotic gases(for example chlorine or ozone) tend to have shorter life spans than sensors monitoring the more common gases (Carbon Monoxide, Hydrogen Sulphide for instance). For example, standard Oxygen sensors usually last up to two years, with long-life options available. The sensors inside of gas detectors can be affected by various circumstances. - Ambient temperature - Humidity level - Other gases (interfering) - Physical factors such as vibration or shaking - Contamination by cleaning products - Contamination by dust, pests or sand Sensors can be expensive to replace so if possible, limit their exposure to damaging factors!