Spark generatorDC 3V water heater spark module for fule seriesTop quality for Chinese top brand.Spark generator1. Input voltage: DC 3V2. Chip digital technology3. Timer or no timer4. Spark indication5. Anti -pure burning protection6. Double thermocouples the oxygen-poor, the flue plugging-up protection7. Operate Separately or simultaneously8. Many kinds of displays are applicable.(LCD, LED, etc. )9. The low water pressure starts function of two electromagnetic valves10. Top quality for Chinese top brand.