XH-M203 Automatic Water Level Controller 12V Relay Pump Switch

XH-M203 Full-Automatic Water Level Controller – 12V DC/AC

Take full control of your water management system with the XH-M203 Full-Automatic Water Level Controller. This compact, reliable module automatically monitors and regulates water levels in tanks, reservoirs, pools, and irrigation setups — turning your pump on or off without any manual intervention. Whether you're building a DIY water automation project or upgrading an existing system, the XH-M203 delivers consistent, hands-free performance.

Key Features

• Fully Automatic Operation: Automatically controls a pump or relay based on detected water level — no manual switching needed.
• Wide Voltage Compatibility: Supports both AC and DC 12V supply voltage, making it versatile for a variety of setups.
• Wide Operating Temperature Range: Rated for -40°C to +85°C, suitable for indoor and outdoor environments.
• DIY Kit Format: Comes as a DIY kit, perfect for hobbyists, makers, and electronics enthusiasts who want a customizable solution.
• Relay Output: Built-in relay switch output drives pumps and solenoid valves directly.
• Compact Module Design: Small footprint makes it easy to integrate into enclosures, control panels, or custom builds.
• Customizable Configuration: Adjustable trigger levels allow you to set your own high/low water thresholds.

Specifications

What's in the Box?

• 1 × XH-M203 Water Level Controller Module (DIY Kit)

Perfect For

• Water tank automation (home, garden, agriculture)
• Sump pump control systems
• Aquarium and fish pond management
• Irrigation and hydroponics projects
• DIY electronics and maker projects

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Frequently Asked Questions

Q: What does the XH-M203 Water Level Controller do?

A: The XH-M203 is a fully automatic water level controller module that monitors water levels in a tank or reservoir and automatically activates or deactivates a connected pump or relay switch when the water reaches preset high or low thresholds — completely hands-free.

Q: What voltage does the XH-M203 Water Level Controller require?

A: The XH-M203 operates on both AC and DC 12V power supply, making it compatible with a wide range of standard power adapters and control systems used in DIY and home automation projects.

Q: Can I use the XH-M203 module for outdoor or garden water systems?

A: Yes. With an operating temperature range of -40°C to +85°C, the XH-M203 Water Level Controller is well-suited for outdoor environments including garden irrigation systems, outdoor tanks, and agricultural water management setups.

Q: Is the XH-M203 suitable for beginners in electronics?

A: The XH-M203 comes as a DIY kit and is designed with makers and hobbyists in mind. Basic electronics knowledge is helpful for installation, but its straightforward relay-based design makes it accessible for intermediate DIY enthusiasts building water automation systems.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.