A Representation Of Power

Imagine a chain that holds up a heavy weight. Wouldn't you want to test that chain before using it? What if that chain was actually... electricity?

See, electricity is like a chain. If you hang too much on it, sooner or later, one of the links will snap and all your coffee makers will clatter to the ground and possibly explode into fire. That's why it's important to always test the metaphorical chain link that is your electrical outlet. Was that segue unclear? Maybe we should be more clear with our imagery here,

If your power line was an ocean full of fish, then this Extech AC Circuit Load Tester would test just how many fish could be delivered into your home. Maybe you'd, let's say, only have a fishbowl that could hold two fish without exploding into a shower of sparks. You'd look, and see it was a 20 fish line, and say NO WAY! and be safe. Whereas, before, you'd just end up with a living room full of piranha!

Or what if your outlet was a pizza oven, and you had a small child only hungry for a few slices? Well, in that metaphor, this tester would turn red if the slices were too hot, and keep your child from weeping when a sizzling pepperoni fell down onto their leg.

No matter how we explain it, this thing keeps you from getting trapped in a terrible disaster. Isn't that worth it?

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AC Load Tester

  • Selectable loads of 12, 15, and 20 Amps
  • Measures loaded and unloaded AC line voltage
  • Calculates and displays % voltage drop and line impedance
  • Displays peak line voltage and frequency

Outlet Tester

  • Neutral to ground voltage
  • Hot, neutral, and ground impedance
  • Tests 3-wire standard and GFCI receptacles
  • Display turns red when a problem is detected
  • GFCI trip time
  • GFCI trip current
  • Open or reversed wiring
  • ASCC (Available short circuit current)

Complete with AC test cord (standard North American 3-prong plug)

Check out this great product video!

Shipping Note: Eligible for shipping to all 50 states

Warranty: 1 Year Extech


AC Voltage: 90 to 240 volts
Frequency: 45 to 65 Hz
Peak Line Voltage: 350 volts
% Voltage Drop: 0.1 to 99.9%
Dimensions: 8" x 2.8" x 2"
Weight: 11.2 oz

In the Box:

  • (1) Extech CT70 AC Circuit Load Tester
  • AC Test Cord

Sales Stats

Speed to First Woot:
5m 47.338s
First Sucker:
Last Wooter to Woot:

Purchaser Experience

  • 5% first woot
  • 5% second woot
  • 16% < 10 woots
  • 18% < 25 woots
  • 56% ≥ 25 woots

Purchaser Seniority

  • 4% joined today
  • 0% one week old
  • 1% one month old
  • 16% one year old
  • 79% > one year old

Quantity Breakdown

  • 83% bought 1
  • 6% bought 2
  • 10% bought 3

Percentage of Sales Per Hour

12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11

Woots by State

zero wooters wootinglots of wooters wooting

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Extech AC Circuit Load Tester
$97.99 Sold Out Business & Industrial
$97.99 USD false 1 Retail EA
1 3
Woot! Tools.Woot
4121 International Pkwy Carollton TX 75007 U.S.A.