Hello,I have been a compound guy for 38 years.Ive put a great amount of trust in my gauges because of the success I've had.But times have changed and a new age has been introduced in a very positive way to me where I can now jump on the digital wagon.So I did with the Testo 557 and I have to say I would of done it years ago.I've now retired all but one back up compund and Testo has taken a lot of time and effort away from my every day Refrigeration jobs.As far as my purchase from the seller in China thank you for a perfect transaction !
Verified purchase: Yes | Condition: New
Is the good quality
Verified purchase: Yes | Condition: New
Verified purchase: Yes
Good for efficient work
Verified purchase: Yes | Condition: New
Love them. Best investment
Verified purchase: Yes | Condition: New
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