Please see below the part number combinations available for this product.
Contamination Sensor CS 2000 Series
Description
CS2030-1-U/-1-1
CS2030-1-U/-2-0
CS2030-1-U/-2-1
CS2030-1-U/-3-0
CS2030-1-U/-3-1
CS2030-1-U/-3-2
CS2031-1-U/-3-2
CS2130-1-U/-1-0
CS2130-1-U/-1-1
CS2130-1-U/-1-2
CS2130-1-U/-2-0
CS2130-1-U/-2-1
CS2130-1-U/-2-2
CS2130-1-U/-2-5
CS2130-1-U/-3-0
CS2130-1-U/-3-1
CS2130-1-U/-3-2
CS2130-1-U/-4-0
CS2131-1-U/-3-1
CS2230-1-U/-1-0
CS2230-1-U/-1-1
CS2230-1-U/-1-2
CS2230-1-U/-1-5
CS2230-1-U/-2-0
CS2230-1-U/-2-1
CS2230-1-U/-2-2
CS2230-1-U/-3-0
CS2230-1-U/-3-1
CS2230-1-U/-3-2
CS2230-1-U/-3-5
CS2230-1-U/-4-0
CS2230-1-U/-4-2
CS2231-1-U/-1-2
CS2231-1-U/-3-2
CS2231-1-U/-4-0