DIY Aquarium Water Level Controller Liquid Sensor Switch

DIY Aquarium Water Level Controller Module – Liquid Sensor Switch

Keep your aquarium, sump, or reservoir perfectly managed with this compact Water Level Controller Module. Using a resistance-based liquid sensor, it automatically detects water levels and triggers your pump or drainage system — no manual monitoring required. Ideal for hobbyists, DIY electronics enthusiasts, and anyone looking to automate their aquarium or water management setup.

Key Features

• Automatic Control: Detects liquid levels and activates or deactivates pumps and drainage systems automatically.
• Resistance Sensor Technology: Reliable and responsive sensing for accurate water level detection.
• Switching Transducer Output: Compatible with a wide range of pumps and relay-controlled devices.
• Wide Voltage Compatibility: Supports AC loads up to 250V and DC loads up to 30V; powered by 12V DC (DC 10V–14V).
• Compact Design: Small footprint (60mm × 44.5mm × <23mm) fits easily in tight spaces or custom enclosures.
• Polymer Construction: Lightweight and durable polymer body built for long-term use in wet environments.
• DIY Friendly: Customizable setup makes it perfect for hobbyist aquarium builds, hydroponics, sump tanks, and more.

Specifications

Perfect For

• Aquarium auto top-off and overflow systems
• Sump pump automation
• Hydroponic reservoir management
• DIY electronics projects requiring liquid level control
• Drainage and pumping automation

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Frequently Asked Questions

Q: What does the DIY Aquarium Water Level Controller Module do?

A: This water level controller module uses a resistance-based liquid sensor to automatically detect high or low water levels in your aquarium, sump, or reservoir. When a set level is reached, it triggers a switching output to activate or deactivate a connected pump or drainage system — eliminating the need for constant manual monitoring.

Q: What voltage does the water level controller require, and what loads can it handle?

A: The module is powered by a 12V DC supply (operating range: DC 10V–14V). Its switching output can handle AC loads up to 250V and DC loads up to 30V, making it compatible with most standard aquarium pumps and relay-controlled devices.

Q: Is this module suitable for a DIY beginner?

A: Yes! This module is designed with DIY enthusiasts in mind. Its compact size (60mm × 44.5mm × less than 23mm), straightforward wiring, and switching transducer output make it accessible for hobbyists building their first automated aquarium or water management system. Customization options allow it to fit a variety of project configurations.

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.