Our company purchased 5 or 6 from johnstones, One guy was giving me a hard time UEI "unreliable Electronic Instruments". 5 months in no trouble at all. And now they keep one in stock maybe others will catch on also.
I have a lot of different test instruments . (temp,humidity, micron etc etc...) by many diff brands. Its frustrating when everyone reads dif from each other measuring the same thing. Which one do you believe?