Features: 1. Designed for monitoring liquid level in pools, wells, water towers, reservoirs, tanks, etc. 2. Adjustable sensitivity via knob (5-100k). 4. Stable performance, long service life. 5. Relay status indicated by LED. 6. Compact design with 35mm DIN rail mount. Specification: Model: GRL8-01 Function: 2 level control mode Power terminal: A1-A2 Rated power supply voltage: AC/DC 24-240V (50-60Hz) Power consumption: Max. 2VA Sensitivity adjustment range: 5-100k Supply voltage tolerance: -15%; +10% Voltage in electrodes: Max. AC 5V Current in electrodes: Max. 0.1mA Response time: Max. 400ms Electrode cable allows distributed capacitance (maximum): 400nF-100nF Electrode cable length: 100m Setting accuracy: 10% Output contact parameters: 1 x SPDT, 10A/AC1, 250VAC/24VDC Minimum switching power: 500mW Power indicator: Green LED Output indication: Red LED Mechanical life: 1x10⁷ Electrical life (resistive load): 1x10⁶ Reset time: Max 200ms Working temperature: -20~55°C Mounting method: 35mm DIN rail Mounting altitude: 2000m Wiring capability: 1x2.5mm² or 2x1.5mm² Dimensions: 90x18x64mm / 3.54x0.71x2.52in Weight: Approx. 70g / 2.5oz Package List: 1 x Liquid Level Control Relay Note: 1. Due to differences between monitors and lighting effects, the images may not reflect the actual color of the item. 2. Please allow slight variation due to manual measurement. Thank you for your understanding.