Detector tubes and badges are personal monitoring devices that can be used to measure the concentration of specific gases or vapors in the air. They are commonly used in industrial settings to ensure the safety of workers.

Detector tubes are glass tubes that contain a chemical reagent that changes color when exposed to a specific gas or vapor. The length of the color change is proportional to the concentration of the gas or vapor.

Detector tubes and badges are a simple and reliable way to monitor the air quality in the workplace. They can be used to identify the presence of hazardous gases or vapors, and to measure the concentration of these gases or vapors.

There are a variety of detector tubes and badges available, each designed to measure a specific gas or vapor. Some of the most common types of detector tubes and badges include those that measure for carbon monoxide, hydrogen sulfide, and oxygen.