Lead Paint Testing Tool. Any Suggestions?

Hi Guys,

I am conducting a survey and test as well with regards to "Lead Paint Test Kit or Tools". I already picked some testing kits and I am still adding more to my list. Hope you can give me more. This will going to help me a lot with regards to my work. Hope you can help me with regards to this one. Thanks in advance.

Lead Paint Testing Tool/Kit
1. Lead Check Swabs by Hybrivet Systems
2. D-Lead by Esca Tech Inc
3. 3M™ LeadCheck Swabs Instant Test Kit (8 PK)
4. Pro-Lab LS104 Lead Surface Do It Yourself Test Kit
5. Abotex Premium Lead Test Kit
6. First Alert Premium Lead Test Kit