This product is AQTB series. The product adopts multi-supply voltage power supply mode, which has stronger availability. The product adopts aluminum alloy structure to reduce the weight of the equipment and strengthen the compression resistance of the product. At the same time, in order to ensure the safety of the internal circuit of the product, the product adopts a closed seal, which meets the requirements of IP67, plus internal moisture resistance. Widely used in petroleum, chemical, water treatment, shipbuilding, light industry and other industries.