Kits are shown here, from PAT Testing kits, Pressure fitting kits, lightmate kits. If we have it in kit form with accessories, the items will be shown in this section.It is usually more cost effective to purchase a kit then single items.
PAT Test bunbles for instance, usually include labels and sometimes software if it is a tester with download facillities, of course.
Look at the voltage testers complete with proving units, like the VIPD138 KIT from Martindale. You get a case, and much better pricing, than if you purchased the single items.
Thermometer kits are also excellent value, as probes are included as well as cases.