hi all , now im becoming gs i want to buy a analyser, not really fussed about the make as long as its working ( and preferably in calibration) . in my previous job i used a kane 455 and really liked it (this was the one i used in collage to do my cpa1 as well, tutor told me it was the cheapest to calibrate and repair as it has no cells unlike a testo or something????) so if anybody know of one for sale let me know!! thanks