Welcome to our shop merchandise have inexpensive charges and nice quality. We supportdropshipping and wholesale. If you favor to paintings with us for an extended time, please touch us and we are able to give you a very favorable charge Regards! Specifications: The thermopile is used with 750 millivolt pilot systems. This system is often discovered on gas fireplaces and gas logs that use wall switches or distant controls. This package is a type of cobination range thermocouple, presents energy for 250/750 millivolt self-generation leadership systems. a. Internal resistance (25°C), varies with specs and size between 1,500 mΩ and 4,500 mΩ. b. Normal working temperature 700-750°C. c. Connecting type: spiral form and two-pole plug-in type. d. Length 36 inch Type: Gas Water Heater Parts Material: copper color:picture color Features: corrosion resistance, high temperature resistanceApplicable gas: pure fuel / liquefied petroleum gasApplication areas: gas ovens, gas grills, fuel boilers, fuel water heaters, etc. Package Contents: five * thermopile Only the above kit content, other item shouldn't included. Note: Light shooting and varied reveals may cause the color of the object in the photograph somewhat varied from the real thing. The measurement allowed error is +/- 1-3cm.