PWM 4-Wire Fan Temperature Controller Speed Governor For PC Fan/Alarm DC 5-12V

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Description:
1. This controller can only control 5V or 12V standard 4-wire PWM fans. The fan speed is controlled by PWM signals. The actual speed change of the fan is affected by the design of the fan itself. Can't adjust the speed of 2-3 wire ordinary fan, can't cut off the power of the fan, can't turn off the fan completely.
2. Please note that the power supply voltage must match the fan voltage.
Basic parameters:
Working voltage: DC 5V or 12V (board working range DC 4.5-16V)
Control the fan current: the plug-in board does not exceed 3A (a larger current fan can be achieved through an external power cord)
Circuit self-consumption: no more than 20mA
PWM signal mode: 25KHZ Vpp=3.3V
Temperature probe model: 50K B=3950
Circuit operating temperature: -10℃ to 60℃
Probe temperature resistance: small blackhead 120℃, ring probe 110℃
Board size: 29mm*13mm*9mm (without interface), the fan interface extends 7mm and can be sleeved with a diameter of 12 heat shrinkable tube
Factory default setting: basic speed control output Po=20%, acceleration temperature Tu=30℃, temperature control interval Td=5℃ (35℃ full speed), signal forward mode.
note:
1. The pin current on the board cannot exceed 3A
2. The controller does not participate in speed measurement
3. The controller does not control the fan power
Signal mode setting instructions:
Forward mode: used for conventional fans, PWM positive changes, full output value is 100
Reverse mode: used for conventional reverse timing fan, PWM reverse change, full output is 0
Reverse 80% mode: for special reverse timing fans, reverse change, full output is 20
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Shipping Policy
Returns & Refund Policy
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Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched.
Shipping Policy
1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.
2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders.
3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund.
Returns & Refund Policy
All package need to
wait 30 days
(US only n
eed 7-10 days)
,
Please take care it.Less than 30 days,we can't take a refund
.
If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it.
If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.
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