Amprobe ST-101B Receptacle Tester

(4 customer reviews)

  • Quickly and easily test receptacles in your home or on the job
  • Easy to read light indicators
  • Confirm proper wiring and operation of ac sockets
  • For use on 110-125 V AC
SKU: 4160800 Category:


Easily check and confirm proper wiring of electrical receptacles with the Amprobe ST-101B Receptacle Tester. Quickly test sockets and confirm wiring and operation of AC outlets.


Rated operating voltage 110 – 125 V AC
Wattage 0.3 W
Actuator NA Black button
Indicator lamps Three, incandescent Red LED, three lights, incandescent
Lamp lens colors One red, two amber
Light colors Open ground, open neutral, open hot, hot/ground reverse, hot/neutral reverse, correct
Safety agency approvals


What’s Included

  • ST-101B


Datasheet »
Product Manual »

4 reviews for Amprobe ST-101B Receptacle Tester

  1. jlmonti

    Exellent Piece of Equipment

    Tester worked both at detecting Open grounds and GFI functionality – No cons to speak of – Would recommend this product – Purchased tester on Amazon – WIll augment this review should there be any issues in the future (and on Amazon)

    ✔ Yes, I recommend this product.

  2. FFernandez

    Very useful for engineers and no engineers

    It´s a simplest way to know how our electrical instalation is working, i´m electronic engineer and this product result very useful for my job, but i decided give one to my mom, she doesnt know anything of electricity, and with this Amprobe solution she has improved the instalation of her home by herself!!

    ✔ Yes, I recommend this product.

  3. Millwrightcharles

    Best investment

    Only had a month and used several times. Everyone needs one of these in there tool box.

    ✔ Yes, I recommend this product.

  4. James556

    Great buy to make

    I easily tested a house that i brought. I found numerous outlet reverse and opened. Now having peace of mind that the wiring is correct. Thanks for making a great product.

    ✔ Yes, I recommend this product.

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