This product applies to all models of the source device, using methods and points for attention are as follows:

1. the operating current of the control relay must be greater than 10A.

2. relay main power cable cross section equal to or greater than 2.5mm2 output no less than 1.5mm2 wire, cathode-ray should have access to good effect to ensure that the use of this product.

3. Horn air supply directly from the air container introduced, in order to achieve better sound quality; air storage tank must always discharge the water, so as not to affect the life of the solenoid valve.

4. working pressure 0.3-0.9MPa, the best value 0.42-0.68MPa.

5. temperature range-40-80 ° c.

6. this product longevity can reach more than 100,000 times.