When I bought it, it was just the Insight T, then they came out with a lower resolution model (to reduce the cost) and the model comparable to mine was the Insight T Plus (I found this out when I called Infrared Solutions to ask about something, forgot what it was that I was inquiring about), now, they are the Insight XST, which means extra sensitive, I'm assuming it has the higher resolution similar to mine, but I'm not sure.

They have two models, the basic model and the one which gives the temperature, i.e., when I bought mine, the Insight and the Insight T, now the Insight XS and Insight XST (with the temperature reading).

The digital video is the Sony Handycam Mega Pixel, Super Steady Shot DCR-PC109 NTSC, 120x digital zoom with the Carl Zeiss lens. I have the standard battery 5.6 Wh pack and the extended life 11.2 Wh battery pack.

Hope that helps.

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Jerry Peck, Construction / Litigation Consultant
Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )