Looking for a cheap CO2 meter...

[Sirius]

What do you all think of this model???

http://www.co2meter.com/collections...cts/cam-co2-meter-powered-by-auto-home-or-usb

Thanks for any help in advance I need a few of these and want to just monitor levels... whattaya think? it has loggin capabilities.. just plug into a pc...

 

[Zoolander]

Spend the extra $300 or so and get the sentinal , Ilove mine when I run it

 

[Jalisco Kid]

I do not know the brand but for 120 its worth it,if they they make a decent product. I was thinking like zoo but I would spend just another 100 and buy a sensor controller from Telaire a GE company. They might have just a sensor cheaper. I think they make the co2 units for greenaire. JK