The Checkit range comes in a case which includes the checkit comparator instrument and the disc with a continuous color scale, cells, stirrer, and reagents to carry out 30 tests. To extend the use of the instrument or reorder accessories avail of the TestPack with the disc and the material necessary to carry out, generally, 30 tests. Similar to Checkit, but a more economical pack without the case or instrument. (See ref. in the column 'Test Pack').rrCheck for replacement reagents