Co2 monitors is utilized for school building, airtight offices and institutions, and for you are chances on suffocation in that area, so co2 monitors are were required to keep individual alert and pro active relating to this issues. The family of co2 monitors consists of four years old parts they are AQ-alert, AQ-climate control and AQ-transmit. These sensors have unique specification. These monitors are crucial to know the involving carbon dioxide. These monitors are designed according to the quality of air inside the room. These monitors quickly and precisely show the concentration of co2 in the air, and the temperature among the room should be -10 to +50 c. in addition, it contain an infrared measuring system. It also assists with evaluating and processing the signals that are to be able to measured using a digital algorithm. This monitors show light on their monitor who displays the quality of air and content of co2 in the air is also displayed. These monitors also contain two different signals one for the process and other for creation of measurement of carbon dioxide. 0These air co2 quality monitors are light weight, compact, easy to handle and use, maintenance free and long term guarantee is given. And these monitors are available in affordable rates. AQ- Climate control monitors is like a network monitor system that measures the main parameters of climate inside a packed areas. The quality of air is checked is checking level of temperature, humidity and co2 content, as it content a temperature sensor and hygrometer. It also incorporates with two beam infrared measuring system and also have their web server. These co2 climate control monitor is compact, durable and maintenance free. These companies not only provide with co2 monitor but also has tank level monitor, which checks on the increase and decrease level of volume regarding tank. This is indicated through a cable with it which drives a target inside, which shows success outside the tank. These monitors shows exact water level inside the tank in feet, inches, meters or decimeters. These level detectionmonitors are available just about all the item necessary, packed up in real set, we need not purchase any part from the local market. All items needed to fix this tank indicators are assembled wearing it. These industrial models are manufactured with stainless steel as a way to make it cheaper PVC plastic pipes for water service is used. Many new designs are offers high reliability and long life guarantee and draws current for short time span. This monitor not only shows the condition of fluids, pressure, rate of flow, temperatures of large tanks which are of significant challenge and to reduce personal risk and hurdles.