XH-M203 12V Automatic Water Level Controller Relay Pump Switch
XH-M203 12V Automatic Water Level Controller Relay Pump Switch
XH-M203 12V Automatic Water Level Controller – Relay Pump & Liquid Sensor Switch
Keep tanks, reservoirs, and water systems running efficiently with the XH-M203 12V Automatic Water Level Controller. This compact, fully automatic control board monitors liquid levels and triggers your relay pump switch accordingly — no manual intervention required. Whether you're managing a sump, irrigation tank, aquarium, or industrial water system, this reliable level control board delivers consistent, hands-free operation.
Key Features
- Fully Automatic Control: Automatically starts or stops the connected pump based on real-time liquid level detection.
- Wide Compatibility: Works with AC or DC 12V systems for versatile installation across home, garden, and light industrial applications.
- High Output Capacity: Rated at 10A output, capable of driving a wide range of pumps and relay loads.
- Compact & Mountable: Small 60 × 40 × 18 mm footprint with M3 screw mounting holes for easy, secure installation.
- Durable PC Material: Constructed from polycarbonate for long-lasting performance in demanding environments.
- Liquid Sensor Switch Included: Complete kit with sensor probe for immediate deployment.
Technical Specifications
| Model | XH-M203 |
| Control Type | Fully Automatic |
| Working Voltage | AC/DC 12V |
| Output Capacity | 10A |
| Product Size | 60 mm × 40 mm × 18 mm |
| Mounting Hole | M3 Screw Hole |
| Material | PC (Polycarbonate) |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1× XH-M203 Water Level Controller Sensor Switch Board
Important Notes
- Due to lighting and screen variations, product color may differ slightly from images.
- Please allow 1–3 cm variance due to manual measurement.
Installation & Safety Resources
For guidance on safe electrical wiring and relay switch installation, refer to the OSHA Electrical Safety Standards to ensure your setup meets workplace and home safety requirements.
Frequently Asked Questions
Q: What voltage does the XH-M203 water level controller require?
A: The XH-M203 operates on AC or DC 12V power, making it compatible with most standard 12V power supplies used in home water systems, garden tanks, and light industrial setups.
Q: What is the maximum load the relay pump switch can handle?
A: The XH-M203 has an output capacity of 10A, which is sufficient to drive most standard submersible or inline pumps used in residential and light commercial water management applications.
Q: How does the automatic water level controller work?
A: The liquid sensor probes detect the water level in your tank or reservoir. When the level drops below or rises above the set threshold, the relay switch automatically activates or deactivates the connected pump — providing fully hands-free water level management.
Q: Can the XH-M203 be used outdoors or in wet environments?
A: The control board is made from durable polycarbonate (PC) material and is designed for use near water systems. However, it is recommended to house the board in a protective enclosure to prevent direct water contact and ensure long-term reliable operation.