GEYA GRL8,liquid level control relay,water level controller GEYA- GRL8 Liquid Level Control Relay| Electronic Liquid Level Controller 10A AC/DC24V-240V PDF GRL8 SPECIFICATION Product Description GEYA GRL8 series liquid level control relay is DIN‑rail mounted water level controller for automatic water supply and drainage system. Universal power supply AC/DC 24‑240V. Sensitivity adjustable from 5KΩ‑100KΩ. Equipped with 1NO+1NC change‑over contact, contact capacity 10A 250VAC /24VDC. Mechanical life up to 10 million times, electrical life 100,000 times. Three main models available: GRL8‑01: 3‑probe control for water supply & drainage GRL8‑02: 2‑3 probe control, support TON / TOFF delay function GRL8‑03: Double‑group 2‑probe control for water well & water tower dual‑level monitoring Two variants for each model: unit without probe, or unit complete with liquid level probes. Separate 3‑pole liquid‑level probes are sold as spare parts. Widely used for water tower, water tank, water well, sump pump automatic water level management. Specification Attribute Value Brand GEYA Model GRL8‑01, GRL8‑02, GRL8‑03 Product Type Liquid Level Control Relay / Water Level Automatic Switch Mounting Type 35mm DIN Rail Power Supply AC/DC 24‑240V Universal Sensitivity 5KΩ‑100KΩ Adjustable Contact 1NO+1NC Change‑over Contact Contact Rating 10A AC1, 250VAC /24VDC Response Time Max 400ms Power Consumption Max 2VA Setting Error 10% Operating Temperature -20℃ ~ +55℃ Mechanical Life 10,000,000 Cycles Electrical Life 100,000 Cycles Function Automatic Water Supply, Drainage, Delay Control, Dual‑well Water Tower Control Variant Without Probe / With Probe Application Water Tank, Water Tower, Water Well, Sump Pump Liquid Level Management Reference Weight 0.14‑0.18kg