I just tring to get some tools as a newbie. Just wondering about this meter since it does both gas and co. instead of have 2 meters.(1 gas & 1 co detector). That meter is $300.00. It's 2 in one. just curious has anyone tried it yet. If not then I would have to spend more money and go w/ the Bacharach Jr for gas and the UEI C071. These is pushing $400.00 for both.