Instruction Manual for KOBALT models including: 2545079, ET-18 Receptacle Tester with GFCI, ET-18, ET-18 Receptacle Tester, Receptacle Tester, Tester, Receptacle Tester with GFCI, Tester with GFCI
110V To 125-Volt Analog Receptacle Specialty Meter 887327180031