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Small rectangular controller board with screw terminals and a long wired temperature probe

Vszerda

Vszerda DC 12V 1A Fan Speed Controller with Sensor

SKU CH-714H-5P1DG

Automatically adjusts 12 V fan speed from 15 °C to 70 °C using a waterproof 300 mm probe, supports 2-, 3- and 4-wire fans up to 1 A

  • Automatic stepless speed control reacts to ambient temperature, saving energy and reducing noise
  • Compatible with 2-wire, 3-wire and 4-wire fans up to 12V and 1A total current
  • Waterproof epoxy-sealed temperature probe withstands up to 110 degrees Celsius
  • 300mm sensor cable with mounting holes allows precise placement at the measurement point
  • Dual operating modes: fixed start at 30 degrees Celsius or adjustable start between 15 and 50 degrees Celsius

Automatic 12 V fan controller

The Vszerda DC 12 V 1 A governor adjusts fan speed automatically based on ambient temperature. It supports 2-wire, 3-wire and 4-wire fans running at up to 12 V and a combined current below 1 A. A waterproof epoxy-sealed sensor probe on a 300 mm cable monitors the target spot up to 110 °C.

Simple two-wire hookup

Connect the fan power leads to the controller and mount the sensor probe through its integrated mounting holes. Three- and four-wire fans only need their power cable attached; the controller handles PWM or brushless types automatically. Ensure total fan current stays under 1 A to avoid overload.

Ideal for silent PC cooling

Builders who want temperature-dependent fan curves without manual tuning will benefit from the fixed 30 °C start and 50 °C full-speed points or the adjustable 15–50 °C start and 35–70 °C full-speed ranges. Systems requiring higher fan currents or multi-zone sensor arrays should consider other solutions.

Highlights

  • Automatic stepless speed control reacts to ambient temperature, saving energy and reducing noise
  • Compatible with 2-wire, 3-wire and 4-wire fans up to 12V and 1A total current
  • Waterproof epoxy-sealed temperature probe withstands up to 110 degrees Celsius
  • 300mm sensor cable with mounting holes allows precise placement at the measurement point
  • Dual operating modes: fixed start at 30 degrees Celsius or adjustable start between 15 and 50 degrees Celsius

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the controller is regulating fan speed correctly after installation?

Watch the fan spin faster as the sensor area warms toward 30 °C and reach full speed above 50 °C; the linear increase between those points shows the automatic curve is active.

What comes in the package and what must I supply myself?

The unit includes the controller board and a 300 mm epoxy-sealed temperature probe with mounting holes; you provide a 12 V DC power source and any 2-, 3- or 4-wire fans totalling under 1 A.

Should I use the fixed or adjustable temperature mode for my build?

Choose fixed mode for a preset 30 °C start and 50 °C full-speed range, or adjustable mode if you need the start point between 15 °C and 50 °C and full speed between 35 °C and 70 °C.

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