Specifications: The thermopile is used with 750 millivolt pilot systems. This system is always came upon on gasoline fireplaces and gasoline logs that use wall switches or remote controls. This equipment is a type of cobination variety thermocouple, offers power for 250/750 millivolt self-generation management systems. a. Internal resistance (25°C), varies with specs and length between 1,500 mΩ and 4,500 mΩ. b. Normal working temperature 700-750°C. c. Connecting type: spiral kind and two-pole plug-in type. d. Length 36 inch Type: Gas Water Heater Parts Material: copper color:picture color Features: corrosion resistance, hot temperature resistanceApplicable gas: natural gasoline / liquefied petroleum gasApplication areas: fuel ovens, fuel grills, gas boilers, gasoline water heaters, etc. Package Contents: five * thermopile Only the above kit content, assorted merchandise are not included. Note: Light capturing and diverse exhibits may cause the colour of the item within the photo a bit different from the real thing. The size allowed error is +/- 1-3cm. Time of shipment: All of product we will transport out inside 3~8 weekday, on veritably we are in step with visitor orders time for packing and shipment, we need to closely examine the traditional of the goods earlier than to Ship, So take a while to handled. About monitoring number update: If your tracking number is not any logistics information, as thousands of parcels despatched to foreign countries, logistics companies did not update logistics information, please touch us the 1st time, Please kindly do not immediately open the dispute. We are the 1st time for you to solve! Or you might song your parcel at the following web content utilizing your monitoring number: (Copied to the browser to open)