LinkMejor 2pcs NE555 Water Level Automatic Controller Liquid Sensor Switch Solenoid Valve Motor Pump Automatic Control Relay Board 5V

Overview

• 5V/12V Optional Voltage: This NE555 water level automatic controller relay module is available in 5V and 12V versions. Please select the correct voltage option according to your power supply and control system requirements before purchase.
• Automatic Liquid Level Control: Designed for water level detection and automatic relay switching, this module can work with A/B/C sensor terminals to detect liquid level changes and control connected equipment based on the detected status.
• Relay Output Interface: The onboard relay provides NO, COM, and NC output terminals, allowing normally open or normally closed wiring for compatible solenoid valves, small pumps, motors, and other electronic control loads.
• Easy Wiring Terminal Design: Equipped with screw terminals for VIN power input, A/B/C sensor connection, and relay output connection. The board also includes a power indicator and output indicator for convenient operating status observation.
• Wide Application Range: Suitable for water tank level control, liquid level sensing, pump start/stop control, solenoid valve switching, water supply automation, laboratory electronics, and DIY electronic control projects.

NE555 Water Level Automatic Controller Relay Module This water level automatic controller module is designed for liquid level detection and relay output control. It can be used with water level sensor wires to detect liquid level changes and automatically control connected equipment through the onboard relay. 5V and 12V Options Available This listing includes two voltage options: 5V version and 12V version. Please choose the correct voltage option according to your power supply and application requirements before placing an order. Relay Output Control The onboard relay provides three output terminals: NO, COM, and NC. It supports flexible normally open or normally closed wiring for solenoid valves, small pumps, motors, and other compatible control circuits. Clear Terminal Layout The board includes VIN power input terminals, A/B/C water level sensor terminals, relay output terminals, a power indicator, and an output indicator. The labeled terminals make wiring easier and help improve installation efficiency. Practical Application Suitable for water level automatic control, liquid level detection, pump control, solenoid valve switching, small automation projects, water tank control systems, and other electronic control applications. Specifications: Product Type: Water Level Automatic Controller Relay Module Main Control IC: NE555 Voltage Options: 5V / 12V Optional Sensor Terminals: A, B, C Relay Output Terminals: NO, COM, NC Relay Contact Rating: 10A 250VAC, 10A 125VAC, 10A 30V