Can you explain a bit more about the readings of an outlet tester?

Today, with many people looking to do simple wiring jobs at home on thier own, outlet and GFCI testers are becoming more and more common tools in the home owner’s tool box. That being said, many people purchase the tester to inspect outlets or check the work they have done, but they are not 100% sure as to what the tester is telling them.

Below is a picture of the wiring of a standard wall receptacle that you would most likely find in your home. As you see, there are three different wires that should be connected to your receptacle. There should be a black, a white, and a green wire attached securely to each receptacle.


Each of these wires has a different purpose, and are vital to ensure that your appliances that are plugged in are properly powered and grounded, as well as providing you with safe connections for these appliances so that you do not recieve an electrical shock.

Black(Hot)- This is the wire that is carrying the voltage to your appliance. This is commonly referred to as the “Hot” wire because it is the wire that is carrying the voltage.

White(Neutral)- This wire is the wire that allows the voltage to return to your panel.

Green(Ground)- This wire is a safe return for voltage if the neutral doesn’t properly function. This wire allows the voltage and current to return to ground without shocking the user.


Where can you find information on GardnerBender & Sperry Instrument products?

More information on our products can be found at the links below:

Gardner Bender
Since 1959, Gardner Bender branded electrical tools, voltage testers, wire management products and professional equipment have been a mainstay with electrical contractors. Gardner Bender’s approach of offering superior quality at an affordable price makes us an attractive choice for those who prefer putting more money in their pockets than into the job. In addition, Gardner Bender offers industry leading innovation, offering a solution based approach with product designs and features based on end-user feedback. We appreciate you taking the time to visit our site and we look forward to serving you for years to come.

Sperry Instruments
The Sperry Instruments name has been synonymous with quality, precision, and dependability for over forty years. Our products are a representation of our commitment of excellence to you, our customers. Industry leading warranties combine with expert technical assistance and product support to provide premier test and measure solutions to the electrical marketplace. Durability, accuracy, and safety are the hallmark of tried and true tester products; that’s why we use this phrase during the development process of each and every unit.

Gardner Bender Video’s
A brief collection of instructional video’s of some of GardnerBenders conduit benders and cable pulling equipment.

Power Products LLC
Around the world, leading OEMs look to us for more than products. They seek ideas and insight. They rely on our engineering capabilities to refine the solutions they bring to market. Whether OEMs need transformers to break down and distribute power in commercial facilities or industrial automation applications, or power supplies that manage the power quality required by sensitive electronics, we are more than a supplier—we’re a flexible, reliable, innovative partner that protects their good names.

GardnerBender Warranty Coverage


Gardner Bender

Electrical Conduit Benders carry a 1 year limited warranty.
Hydraulic Conduit Benders carry a 1 year limited warranty.
Mechanical Conduit Benders carry a 1 year limited warranty.
Hand Conduit Benders carry a lifetime limited warranty.
PVC HotBlankets carry a 90 day warranty.
Cable Fishing equipment carry a 1 year limited warranty.
Hole Making Equipment carry a 1 year limited warranty.
Hand Tools carry a 1 year limited warranty.
Gardner Bender Test Instruments carry a 1 year limited warranty.
Wire Connectors carry a 1 year limited warranty.
Terminals & Wire carry a 1 year limited warranty.
Switches carry a 1 year limited warranty.
Cable Ties carry a 1 year limited warranty.
Staples carry a 1 year limited warranty.
Wire Management products carry a 1 year limited warranty.
Voice – Data – Video products carry a 1 year limited warranty.

The Circuit Alert and Armor Edge
These tools carry a limited lifetime warranty.

Limited means that GB warrants to the original purchasers of products from GB and Sperry Instruments authorized distributors at the time of shipment such products shall be free of defects in material and workmanship while the tool is used under normal working conditions.  Standard wear and tear, dulling over time, overloading, misuse, and acts of God are not covered under warranty. This warranty does not cover batteries, fuses, or test leads.

When a warranty claim arises, the purchaser must contact GB. If the defect comes under the terms of this limited warranty, GB will arrange , at its sole discretion, one of the following options:

-The product will be repaired at an authorized GB Service Center
-Product will be replaced

The purchaser is solely responsible for determining the suitability of GB/Sperry products for the purchaser’s use or resale, or for incorporating them into articles or using them in the purchaser’s applications. The distributor is authorized to extend the foregoing limited warranty to its original purchasers in connection with the sales of GB products, provided that such products shall not have been altered by the distributor. The distributor shall be fully responsible for any warranties the distributor makes to its purchasers which are broader or more extensive than GB limited warranty.

Lifetime Warranty
Warranty Limitation: The forgoing warranties are exclusive and are in lieu of all other express and implied warranties whatsoever, including but not limited to implied warranties of merchantability and fitness for a particular purpose. The foregoing warranties do not cover ordinary wear and tear, abuse, misuse, overloading, alterations, products which have not been installed, operated or maintained in accordance with GB/Sperry’s written instructions. Test leads, fuses, and batteries are not covered under any implied warranty. “Lifetime” of products that are no longer offered by GB will be either repaired or replaced with an item of GB Instruments choice of similar value. Lifetime is defined as 5 years after GB discontinued manufacturing the product, but the warranty period shall be at least ten years from date of purchase. Original proof of purchase is required to establish original ownership of product.

No warranty will be honored unless an invoice or other proof of purchase date is provided to Gardner Bender. Hand written receipts or invoices will not be honored.

All questions or concerns regarding our warranty should be forwarded to GardnerBender EMAIL!