★☆ Thermostat Controlled Quiet USB Cooling Fan ☆★

★☆ Thermostat Controlled USB Cooling Fan - Silent Operation ☆★

This is a set including a cooling fan and thermostat for aquariums.
It operates via USB power and uses a silent fan (8x8cm).

The fan activates when the water temperature exceeds the set point,
and automatically stops when the temperature drops below the set point.

The 3rd image provides an explanation of the settings.

P0: Temperature at which the fan starts operating
P1: Temperature at which the fan stops operating
P2: For water temperature error correction
P3: Time lag for starting operation

For example,
If P0 is set to 28 degrees
And P1 is set to 26 degrees

The fan will operate when the water temperature is 28 degrees or higher,
and will automatically stop when it drops to 26 degrees or lower.

- The fan is a silent type, measuring 8cm x 8cm.
- Although labeled as 12V, it also operates with 5V USB power.
- Only the water temperature sensor is waterproof; do not submerge any other parts in water.
- Instruction manual and original packaging are not included.
- Please purchase only if you understand how to use it from the images provided.