Clack (R7016P-50K) 50K OHM Test Light 110V; 1-2" MIPClack Corporation Professional Testing Equipment Clack R7016P 50K Test Light 50K OHM diagnostic test light for troubleshooting water softener control valves and electrical components, 110V operation with 1 2" MIP connection 110V AC 50K OHM 1 2" MIP WHAT IT DOES Professional grade diagnostic tool for testing electrical circuits in water treatment control valves The Clack R7016P 50K is a specialized test light designed for water treatment professionals