Is the Innova 3360 good enough for finding home heat leaks?

Yes for broad screening. It shows obvious drafts, missing insulation and hot spots, but the low sensor resolution makes small or subtle leaks hard to pin down.

Can it measure exact temperatures?

It reads surface temperature across its -4°F to 1112°F range, but accuracy and detail are limited by the 32 x 32 sensor and 254mK sensitivity. Treat readings as rough guides.

Does it work in the dark?

Yes. Thermal imaging needs no light, and the visible camera helps only for orientation. The screen is the main limit in bright sunlight.

What batteries does it use, and how long do they last?

It takes three AAA batteries and runs about 60 minutes per set. Carry spares for longer jobs.

Can it connect to a phone or record video?

No. It is a standalone viewer with a 2-inch screen and no app or video recording, so you note findings as you go.

How does it compare with a phone thermal attachment?

A phone attachment usually gives a sharper image and easier sharing, while the Innova 3360 is a self-contained tool with a wider temperature range and no phone required.