Gas and Oil Home Heating Furnaces - Igniter not glowing red hot

Hi all,
My Day&Night forced air heater kicks on (blower starts after turning on at thermostat) but never lights up. Problem started a few weeks ago. The unit is maybe 8 yrs old.
I remove the furnace cover (top part) then had my wife turn it on via the thermostat. Here's what is happening.
1) the blower starts up.
2) I hear a click and gas flow starts (I can smell it) for a few seconds then stops.
3) the igniter never seems to kick on. It does not glow hot and is cool to the touch after everything shuts down.
I thinking it is defective. It is connected via a wire w/a plug in connector at the wire's end and is mounted near the manifold with one screw. Since I very mechanically incline and have experience as a repair tech in various capacities with a major phone company, this seems like an ez item to change out.
I'm just not sure if the igniter is actually bad. Can I just measure for voltage where the wire end of the igniter plugs into it's connection?
Thanks to all for your help.
Rob-1

see if voltage is present at plug, probably so and a bad ignitor. those things are touchy, and respond unfavorably to skin oils, try not to touch the new one.

Thanks! I'll give that a try. One more question though.
What voltage range and type (ac or dc) will I be working with when I test. Heater runs on 110vac.
Thanks again.
Rob-1

110 vac to ignitor. Since you do have a meter you can check the ignitor for resistance(ohms) also to see if it is bad.

Got it.
Once again - thanks.
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Semper Fi, God & Country, Apple Pie.

If you have power there and it ain't glowing it's the ignitor....no need to test anything!