Complex sentence: The Weather Star Jr is a budget model introduced in 1994 that was very uncommon from its introduction, and is similar to the now-discontinued Weather Star III in terms of products and appearance, although it uses the typeface of the 4000.
Split into simpler sentences: The Weather Star Jr is a budget model introduced in 1994 that was very uncommon from its introduction. It is similar to the now-discontinued Weather Star III in terms of products and appearance, but uses the typeface of the 4000.