Extech 40130 - Electrical Tester Alternating Current Voltage Detector is a non-contact voltage detector that can test for Alternating Current Voltage from 100VAC to 600VAC; this tester was made to be used on 50/60Hz circuits. The Tip fits into outlets or against wire insulation and a red LED flashes when voltage is detected. This meter also includes push button ON/OFF switch, Audible beeper, and more.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
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Replaced by GRT300