This device must not be used in work with aggressive, viscous and crystallizing media. The main advantages of this series are: availability in warehouses, popularity of this type of device, lightweight fitting, relatively low price. It is used in many industries, such as oil, gas, chemical, but it has gained particular popularity in the field of housing and communal services. The body of the device is made of steel alloy, and the inner part is made of brass. The principle of operation of the manometer is to change the position of the element that changes the position of the pointer arrow, depending on the change in pressure.