This device complies is required by IEC 60335-1 Annex H, IEC60065:2014 clause14.7 and clause 15.1, IEC 60884-1 2013 clause 20, 21, IEC 61058-1, IEC60669-1 etc.
It has 3 synchronously work stations, which can test 3 linear switches, or 3 plugs or 3 sockets at the same time. The equipment will automatically stop and alarm if one of the stations in abnormal running.