Model UHK-30-200A is a flange-mounted float level controller made of full 304 stainless steel. With overall length 400mm and effective control stroke 300mm, it adopts DN100 PN1.6 standard flange for tank top installation. The red cast aluminum terminal box with waterproof cable gland protects internal reed switch contacts, rated at 230V 0.5A switching capacity. As liquid level rises or falls, the stainless steel float triggers internal magnetic reed switches to send discrete on/off signals for high/low level alarm and automatic pump control. Anti-corrosion stainless steel construction delivers reliable service for marine bilge tanks, fuel oil tanks and fresh water tanks, acting as standard spare parts for ship liquid level monitoring systems.