Testo 316-3 is a reliable leak detector for refrigerants that should not be missing in a professional refrigeration equipment. It detects even the smallest leaks thanks to its high sensitivity of 4 g/a, thus fulfilling the requirements of the F-Gas Regulation as well as the common standards SAE J1627 and EN14624:2012. The instrument is ready for use immediately after switching on, without the need to select a refrigerant characteristic. Thanks to automatic zeroing, testo 316-3 also detects leaks in already contaminated rooms.