Fexhull 0444 Digital Radiator Fan Controller — 12V/24V, Adjustable Temperature

Overview

The Fexhull 0444 Digital Radiator Fan Controller is a compact, reliable switch kit designed for 12V and 24V cooling systems. Its LED temperature readout shows the current value, while the setpoint lets you tailor cooling to your needs. Built to fit single or dual fan configurations, it offers straightforward control without complicating your setup.

Key benefits

• Compatibility with 12V or 24V fans, with the option to add standard 24V relays for full 24V operation.
• Adjustable temperature range from 104 F to 230 F (40 C to 110 C) to suit varied cooling demands.
• LED digital display shows actual temperature plus the setpoint for quick monitoring.
• Supports one or two fans, with the second fan kicking in after a brief delay for balanced airflow.
• Compact form factor (3.75 by 2.6 by 2.2 inches) and wear‑resistant construction for long life.
• Designed by a manufacturer with over 20 years of experience and a focus on professional, standardized production.

How it works

Inside, a pre-programmed microcontroller manages the fan(s) to respond to temperature changes. You set the target temperature using the control button, and the LED readout reflects both actual and set temperatures. The controller remains durable under steady operation and heat, making it suitable for daily use in vehicle, appliance, or compact system cooling tasks.

Use cases and practical notes

Whether you’re tuning a vintage car radiator, a computer case, or a small off‑grid cooling setup, this kit enables flexible fan control without guessing. The device remains functional when the air conditioning is running and provides predictable, staged fan activation to help balance noise and cooling efficiency.

• Real‑time temperature awareness helps you respond to changing conditions without overcooling or undercooling.
• Dual‑fan capability supports more demanding setups, while still keeping wiring simple.

Specifications and durability

• Voltage: 12V or 24V applications (24V relays recommended for full 24V use).
• Temperature range: 40 C to 110 C (104 F to 230 F); display can show Celsius or Fahrenheit.
• Display: LED digital readout of actual temperature and setpoint.
• Size: 3.75" x 2.6" x 2.2"; robust, wear‑resistant materials for long service life.
• Origin: Professional manufacturing with a long track record in thermal control products.