Instruct: Classify an Amazon review as either positive or negative.
Query: Good workable Infrared

I'll admit I was taking a risk buying this one, working in HVAC, I thought the low price was suspect. but when I opened the box I was surprised by how well it works. The back light works well. The adjustable Emissivity is nice, and this is usually only seen on more expensive models. The manual is a little short on details and the Emissivity scale included could be a little better, you can find more detailed ones on other websites like Fluke. The only feature I do not like is the "beep" it lets out after you take a reading. It is not super rugged, but if you take care of your tools it should not be an issue