1. Check the bottom of the box, you should see the model number near the bar code.
2. Check the back or bottom of the main unit, it should have a rating label that shows your model number.
3. Check your manual. Your product’s model number is listed on the front cover of your instruction booklet.
CI100 Series
NF700 Series
BN600 Series
PS100 Series
NN300 Series
QB900 Series
QB1000 Series
NJ100 Series
QB600 Series
NN210C Series
QB700 Series
NJ300 Series
QB750 Series
QB800 Series
NJ1000 Series