This Harmony RM22-LA relay allows monitoring of liquid level control. Harmony Control Relays are used in a wide range of industrial automation applications such as hoisting, packaging, lifts, textile, water. It has a slim form-factor with 22.5mm width, allowing for a flexible and easy installation on DIN rail, using the same space as any modular 1-pole DIN device. It also offers a diagnostic button, sealable cover, simple and precise settings. It provides automatic shutdown management and fault information to the user for a quick fault identification and troubleshooting. multi function controller for wide choice selected in hard-wired logic automated systems, ideal for refurbishment of old installations without using a PLC.