Liquid Level Control Relays detect & control levels of conductive liquids such as freshwater , seawater, sewage & coffee (see table below for other liquids ). They provide a low voltage signal (typically 5VDC pulsed to prevent electroplating issues) to a probe or probes and a common connection on the tank . Features: Accurate liquid level detection and control Prevents overflow and dry running Compact design for easy panel mounting Stable and reliable OMRON performance Suitable for conductive liquids Specifications: is_customized : Yes Size: Miniature Usage: General Purpose Theory: Solid State Relay Model Number: 61F-G-611 Protect Feature: other Uses: Water level control in tanks Pump control systems Industrial liquid monitoring Overflow and empty tank protection Automation and control panels Package Includes: 1 x OMRON 61F-G 61F-11 Liquid Level Relay