Portable gas detector

A chemical reconnaissance equipment used for detecting toxic agents. Used to discover toxic agents on the air, ground, equipment, and other surfaces, identify the type of agent, and determine the approximate concentration of the agent in the air. There are various structural forms of devices, usually consisting of three parts: pipes, exhaust devices, and auxiliary components (see figure). The tube is equipped with carriers such as silicone, fiberglass, and ampoules. Most carriers are impregnated with reagents. The ampoule was filled with a reagent solution, but it broke at the top. The exhaust device is used to suck contaminated air, and there are two types: electric and manual (pump or capsule type). Auxiliary components include head covers, smoke filters, top needles, and heaters for use, as well as sampling shovels and sampling bottles for use in sampling. When using a suction device to suck the contaminated air, the toxic agent entering the tube reacts chemically with the reagent on the carrier, causing a change in the color of the carrier. By comparing with a colorimetric table, the type and approximate concentration of the toxic agent can be determined. With the development and application of high technology, the performance of devices has been greatly improved, and some countries have developed ultra small multifunctional alarm equipment. It can not only detect multiple toxic agents, but also automatically sound an alarm, making it integrated with the alarm system.[1]

Equipment characterized by air extraction device and tube color rendering. Used for discovering toxic agents in the air, on the ground, and various objects, identifying their types, roughly measuring their concentration, collecting contaminated samples, etc.

There are manual, electric, portable, automotive, and easy-to-use devices available. It usually consists of three parts: a tube, an exhaust device, and auxiliary components. Tube is a component that undergoes chemical or biochemical reactions with toxic agents, displaying color changes

Composed of an ampoule containing reagents, fillers (silicone or polypropylene fibers), and fine glass tubes with closed ends. There are two types of devices for inhaling contaminated air: electric and manual (cylinder or capsule).

Auxiliary components include protective covers (caps), top needles, smoke filters, and heaters, as well as sampling shovels and sampling bottles for sampling purposes. During operation, use a pump with a tube inserted and an electric exhaust device to extract dye

Chemical reactions occur between reagents on air and tube packing, and colorimetric methods are used to determine the type and approximate concentration of toxic agents. With the development of microelectronics technology and the application of new materials, some countries have designed

Ultra small multifunctional alarm equipment can not only alarm multiple agents, but also detect and distinguish, making the alarm integrated.