Power On Circuit Tester
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Thexton Power On Circuit Tester

Part No. THX137 Warranty Details  
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For 12VDC or 24VDC systems. LED visual indicator. Red or green LED shows polarity at probe This is a simple and easy to use circuit tester.  It supplies power or ground to test operation of electrical motors, solenoids and more by supplying power or ground.  Also is safe for computer circuits (in test mode). 
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