I was thinking of purchasing a Fluke 718EX 300G, for basic field pressure calibrations. I was wondering if anyone had any personal experience with this particular instrument and found it to be adequate? I have used other less integrated calibrators (e.g, DRUCK), that can be quite cumbersome in the field, especially considering the versatility they provide. Also, if you're aware of any other product that has similar functionality, I'd be interested to get your opinions.