120 volt nitride furnace igniter Replaces hot surface ignitor for gas-fired furnace, boiler, and water heaterHow to tell if your igniter is working, if the igniter has continuity your multimeter should read anywhere from 9 to17 Ohms,if there is no reading on the multimeter or very little change, then there is no continuity and you will have to replace the nitride furnace igniter1.97inch Nitride heating elements, 1.18inch Ceramic insulator body nonglazed 95% alumina- polished finish, 15-3/4 inch temperature rating 250Celsius cable- 20 AWG/ UL 10362 specificationIt works compatible with Cook Top, Cook Top and Range, Furnace and Warm Air Movement, Gas Ignition, Hot Surface Igniters, Infrared light source, Pool Heater and Boilers, Process Machinery, Special FX, Water, and Parking Heaters Nitride heating elementPower rating:150 W. Temperature at 120v 0.5v .60HZ at 17 sec greater than equal 1180 Celsius.This is a very versatile product, very robust with long cycle life. Silicon nitride is extremely rugged and can be handled without fear of breakage or contamination.type: AColour:WhiteMaterial:MetalPackage Contents:1 x furnace replacement ignitorsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.