How do you test a et sensor with a volt/ohm meter

[05 touring]

I have a 2008 700 dragon. When I start the sled the service engine blinks five times. I bought a used et sensor on eBay and nothing changed. How can I test this et sensor with a meter? My problem might be in the wiring or I might have bought a bad et sensor? Help on this would be great. Thank you.

 

[retiredpop]

Sounds like you just need to reset the service interval reminder or turn it off. See attached thumbnail for procedure.
I doubt there is anything wrong with the exhaust temp sensor.

 

[sled_guy]

Even after replacing an EGT sensor the light will blink until the machine is warmed up to a certain operating temperature and run for a minute. I put mine up on a track stand, warm the motor up to operating temp, about 120, then do 4 or 5 35mph throttle blips and the computer resets.

sled_guy