Automatic Water Supply and Drainage Control Ideal for level control of any conductive liquid Both general-purpose and panel-use models available Incorporates an arrester for surge and induced lightning protection Wide range of models: Long-distance, high- and low-sensitivity, two-wire, etc. LED indicator for quick operation check Conforms to EMC/IEC standards (61F-GP-N/-N8/-GPN-V50) UL/CSA approved (61F-GP-N8/-GPN-V50)