Ive had my 523 for 3 years now. Its been a trusted piece of equipment that I rely on day in and day out. Being able to check SH and SC on the fly is vital to me. Ive got analogs on the truck that I haven't touched in years now b/c I am so spoiled with this thing! However, within the first 3 months the temp sensor broke, and they replaced it, no problem. What made my really happy with Testo is they have an office very close to where I live (North Jersey area)
Just today I go to use it and once again the temp sensor is broken, and the unit is not zeroing out. I take a ride up to Sparta, which is where their headquarters and repair center is. I speak to a tech and he tells me that since its out of warranty there is nothing that can be done with either of these problems. He informs me that the 550 is more serviceable, and that my best bet is to just pick up a new 550. I even inform him that I also own a 327 with printer, and he offers no help in any way. He didnt take it in the back to really even look at it. Came out to the reception area, looked at it and handed it back. It would have been nice if he could have maybe somehow arranged some sort of discount for the new one, since this one took a dump after 3 short years.
I get the unit home and mess around with it some more, and it finally zeros out. So, I guess it shows how much he knows.
Its so disappointing to have spent $500 on a meter that I've taken very good care of. As a matter of fact, the unit was always kept inside the cab of my truck.
I really had higher hopes for Testo's customer service. Very disappointing b/c Ive paid more for Testos over other brands thinking they had a superior product.