KT-10034 MICOM, 60HZ GROUND RESISTANCE MONITOR, SBAG-202; GT 12 obsolete/replaced with GTN-S2 GT 22 220V 60Hz no longer available, replaced by TYPE GTN-WH GTN-F1 GT102 DC24V GTN-M3 GT12 AV 220V 60Hz GT14 obsolete, replaced by GTN-H2; GT-14 AC440V 60HZ GT21, AC 110V 60HZ; GT22 - replaced by GTN-SF1 GT-22 240V AC 60Hz - obsolete, alternative - GTN-SF1; GT-22 AC220V 60HZ GT22 AV 220V 60Hz GT42 - obsolete, replaced by GTN-S1;TIMER