High Quality 14-69 Cfm Mini Industrial Filter Fan With CE

What is the delivery way?                                                                                                            

(1)If ship by sea and Air,you can get Bill of Loading,CO,Commerical invoice,Packing list from us after ship.

(2)If ship by express company,you will get a Tracking No. from us after ship.

 What the Certifications do we have obtained?                                                                          

What is the payment?                                                                                                                    

What's the Refund & Replacement?                                                                                            

1. 90-day-warranty.

If there is any quality problem (defective / don't work) of the goods, it could be returned within the warranty days. (Please notify us as soon as possible)

2. Any items must be returned in their original condition to qualify for a refund or replacement. (Any used items cannot be refunded or replaced).

Company view                                                                                                                              

How do our thermostat switches on and off?                                                                            

1. An outer dial enables you to set the temperature at which the thermostat switches on and off.

2. The dial is connected through a circuit to the temperature sensor (a bimetal strip, shown here colored red and blue), which switches an electrical circuit on and off by bending more or less.

3. The bimetal ("two metal") strip is made of two separate metal strips fastened together: a piece of brass (blue) bolted to a piece of iron (red).

4. Iron expands less than brass as it gets hotter, so the bimetal strip curves inward as the temperature rises.

5. The bimetal strip forms part of an electrical circuit (gray path). When the strip is cool, it's straight, so it acts as a bridge through which electricity can flow. The circuit is on and so is the heating. When the strip is hotter, it bends and breaks the circuit, so no electricity can flow. Now the circuit is off. 

What is the MOQ of our our Thermostat?                                                                                   

MOQ: We support sample order.(1~5PCS)

More than 500PCS,can pring Logo on the products.

What is the guarantee Period for our our Thermostat?                                                             

 1-2Year afer sold