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Gardner Bender GK-5 Household Tester Electrical Test Kit, Red

4.5 4.5 out of 5 stars 742 ratings

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Purchase options and add-ons

Brand Gardner Bender
Power Source Battery Powered
Style Voltage Tester
Color Red
Item Weight 5 Ounces

About this item

  • PERFECT GIFT for the homeowner in your life
  • Kit includes most commonly used household testers
  • Tests voltage, GFCI receptacles, batteries and USB ports
  • Simple to use for DIY projects
  • Easy to understand audible and visual indicators
See more product details

Customer ratings by feature

Easy to use
4.5 4.5
Easy to read
4.4 4.4
Value for money
4.3 4.3
Accuracy
4.2 4.2

Frequently bought together

$19.60
Get it as soon as Monday, Mar 25
In Stock
Ships from and sold by Amazon.com.
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$8.59
Get it as soon as Monday, Mar 25
In Stock
Sold by W&G GLOBAL ELECTRONICS INC and ships from Amazon Fulfillment.
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Gardner Bender GK-5 Household Tester Electrical Test Kit, Red
Gardner Bender GK-5 Household Tester Electrical Test Kit, Red
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Price-22% $19.60
List:$24.99
-26% $17.97
List:$24.38
$39.98$34.99-35% $51.82
List:$79.30
$49.76
Delivery
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Get it as soon as Monday, Mar 25
Customer Ratings
Easy to use
4.5
4.3
4.8
4.5
4.7
4.5
Accuracy
4.2
4.6
4.8
4.2
4.6
4.2
Easy to read
4.4
4.8
4.8
4.3
4.7
Value for money
4.3
4.7
4.6
4.3
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Battery Powered
Battery Powered
Battery Powered
Corded Electric
2 X Aaa
Corded Electric
style
Voltage Tester
Tester Kit
Outlet Tester Kit
Electronic
Tester Kit
Circuit Breaker Finder
weight
5 ounces
0.22 pounds
0.62 pounds
0.46 pounds
1.56 pounds
7.2 ounces

From the manufacturer

Gardner Bender Household Tester Electrical Test Kit

This indispensable household tester kit includes the most commonly used testers to test Voltage, GFCI receptacles, batteries, and USB ports. The voltage tester allows the user to verify the presence of AC voltage prior to working on an electrical installation or during troubleshooting without requiring physical contact with live electrical conductors. The included GFCI receptacle tester detects common wiring problems in standard and GFCI protected outlets. Simply plug it in and view the light pattern on the tester to determine if it's correct, open ground, open neutral, open hot, hot/grd reverse, or hot/neu reverse. Tester works on 110-125 VAC receptacles only and will not indicate quality of ground. The battery tester tests common household battery types (AA, AAA, C, D, and 9V batteries) to determine existing charge. Finally, the USB tester can check USB ports for the presence of voltage and test for proper wiring and polarity. Simply plug it into a USB port and the indicator bulb will glow a certain color to tell you the condition of the USB port.

Gardner Bender GVD-3504 Non Contact Voltage Tester

Gardner Bender GFCI Outlet Tester

Gardner Bender Battery Tester

Gardner Bender USB Tester

Non Contact Voltage Tester

The Gardner Bender GVD-3504 Circuit Alert non-contact voltage tester features both audible (beeping) and visual (360 degree flashing red light) indicators to alert the user of the presence of AC voltage from 50V to 600V.

Ground Fault Receptacle and Outlet Tester

Tests for ground fault interruption, open ground, open neutral, open hot, hot/ground reverse, hot/neutral reverse and correct wiring. This tester trips between 6-9 mA.

Battery Tester

The battery tester tests common household battery types (AA, AAA, C, D, and 9V batteries) to determine the health of the existing charge.

USB Tester

Gardner Bender's GUSB-3300 USB Tester is a 3 function USB tester used for checking for the presence of voltage and testing for proper wiring and polarity. The tester features a high-impact housing and a pocket clip. It features an LED that illuminates to easily indicate one of four different USB conditions: dead port, ok port, reversed polarity, and AC voltage present.

Gardner Bender Non contact Voltage Tester

Non Contact Voltage Tester

A non-contact voltage tester serves as a key component in any electrical toolkit, allowing the user to verify the presence of AC voltage prior to working on an electrical installation or during troubleshooting without requiring physical contact with live electrical conductors.

Gardner Bender Non contact Voltage Tester

Non Contact Voltage Tester

Gardner Bender Outlet Tester

Ground Fault Receptacle and Outlet Tester

Gardner Bender Battery Tester

Battery Tester

Gardner Bender USB Tester

USB Tester

Product information

Technical Details

Additional Information

Warranty & Support

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Gardner Bender GK-5 Household Tester Electrical Test Kit, Red


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Product guides and documents

Product Description

This indispensable household tester kit includes the most commonly used testers to test Voltage, GFCI receptacles, batteries, and USB ports. The voltage tester allows the user to verify the presence of AC voltage prior to working on an electrical installation or during troubleshooting without requiring physical contact with live electrical conductors. The included GFCI receptacle tester detects common wiring problems in standard and GFCI protected outlets. Simply plug it in and view the light pattern on the tester to determine if it's correct, open ground, open neutral, open hot, hot/gird reverse, or hot/net reverse. Tester works on 110-125 VAC receptacles only and will not indicate quality of ground. The battery tester tests common household battery types (AA, AAA, C, D, and 9V batteries) to determine existing charge. Finally, the USB tester can check USB ports for the presence of voltage and test for proper wiring and polarity. Simply plug it into a USB port and the indicator bulb will glow a certain color to tell you the condition of the USB port.

Customer reviews

4.5 out of 5 stars
4.5 out of 5
742 global ratings

Customers say

Customers like the quality, value, and ease of use of the electric circuit testing device. For example, they mention it's a great product, easy to use, and convenient. Opinions are mixed on performance.

AI-generated from the text of customer reviews

15 customers mention13 positive2 negative

Customers like the quality of the electric circuit testing device. They say it's a great product, a nice basic set that covers most uses, and an excellent choice for DIY jobs. Customers also say it is very useful for small jobs around the house, such as outlets, wires, and computers. They mention that it'll make their life so much easier.

"Hat is amazing" Read more

"Handy to have around and has most testers homeowners need and there small and don't take up much room." Read more

"...need this entire product package but price was good and each thing has a useful purpose." Read more

"I purchased this as a gift for someone, and it is a nice set for the beginner DIYer who might be changing out some wall outlets...." Read more

10 customers mention10 positive0 negative

Customers appreciate the value of the electric circuit testing device. They mention that it is an excellent buy for the price.

"...] The unit came fairly fast and it had a good price on it so I got it to use" Read more

"didn't need this entire product package but price was good and each thing has a useful purpose." Read more

"Very nice. Not bad price. So far so good. I'm happy...." Read more

"Good Value" Read more

8 customers mention8 positive0 negative

Customers find the electric circuit testing device easy to use, convenient, and handy. They also say it makes life so much easier.

"Good quality and easy to use" Read more

"Testers function as intended and are easy to use...." Read more

"A really awesome set of electrical testers. They make life so much easier...." Read more

"Easy to use" Read more

16 customers mention9 positive7 negative

Customers are mixed about the performance of the electric circuit testing device. Some mention that it works great, the tools work well and effectively, and the battery tester works well. However, others say that it is not really reliable, and broke after 3 weeks or a month. Customers' primary concern is durability.

"Testers function as intended and are easy to use...." Read more

"USB tester broke after a month. Battery tester works ok. Everything else works good" Read more

"I used all the items and they work great" Read more

"...It's not.All that said my primary concern is durability. It is made of what appears to be rather brittle plastic." Read more

GREAT set of testers! All work great! Found we had an open ground for 33 years and didn't know it!
5 Stars
GREAT set of testers! All work great! Found we had an open ground for 33 years and didn't know it!
I actually bought this Gardner Bender® GK-5 set after buying an APC® surge protector with battery back-up off Amazon that showed we had a 'building wiring fault' in our home (the red light at the back of the unit). I had no idea what that meant so I did some research and the most common reason for that type of indicator is an open ground, so I decided to order this tester set, in addition to a yellow Sperry® brand outlet tester, to basically have a 'second opinion'.After both products arrived, I went around our house and found that all outlets on our GCFI circuit did indeed show an open ground. The GCFI outlet is in our master bathroom and protects two more bathrooms, in addition to the master bedroom, the patio outlet, and an outlet in our garage.Since we were going to need to go through and check all of our 33 year old outlets and switches, we decided to change them all to updated Leviton® versions, especially the outlets to tamper-resistant (and from ivory to white), which we proceeded to complete, after shutting off that circuit and using the live wire tester from this set to confirm the circuit was off. But as we checked the dozen or so outlets and switches on the GCFI circuit, none of them had open/disconnected grounds, yet both outlet testers still showed we had an open ground when we flipped the circuit back on.The only other option was likely an open ground in one of the electrical boxes in our attic that would be in the circuit 'before' the GCFI outlet, so I climbed up into the attic through my closet (BTW, I ordered a new Xtend and Climb® 760p+ 10.5' telescoping ladder for easier access to our attic and it works great! I did a review of that too).The first electrical box I checked is right above my closet, right next to the access opening. I took off the cover to that electrical box and immediately noticed the ground wire to the switch for the light in my closet wasn't connected to the other ground wires coming in and going out of the box. It had been like this since our house was built in 1988 and we had no idea!I took a picture with my phone and came down from the attic to show my husband. He asked me to turn the circuit off again and he grabbed the wire nuts and extra copper wire we already had in the house as we searched for the open ground and headed up to the attic. He pig-tailed the ground wire to include the light switch, closed up the box, and came back down from the attic.As he went back outside to reset the circuit breaker, we were talking to each other on our phones, I plugged in the Gardner Bender® GK-5 outlet tester into the GCFI outlet in our bathroom.....TWO yellow lights! No more open ground, but just to make sure it was correct, I used the yellow Sperry® outlet tester in an outlet in another bathroom....TWO yellow lights!I've since used the battery tester and USB tester included in this set and they both work great as well! In fact, the battery tester confirmed that some of the AA batteries we thought were dead, actually had some life still in them, so we didn't end up throwing away good batteries.
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Top reviews from the United States

Reviewed in the United States on February 25, 2021
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5.0 out of 5 stars GREAT set of testers! All work great! Found we had an open ground for 33 years and didn't know it!
Reviewed in the United States on February 25, 2021
I actually bought this Gardner Bender® GK-5 set after buying an APC® surge protector with battery back-up off Amazon that showed we had a 'building wiring fault' in our home (the red light at the back of the unit). I had no idea what that meant so I did some research and the most common reason for that type of indicator is an open ground, so I decided to order this tester set, in addition to a yellow Sperry® brand outlet tester, to basically have a 'second opinion'.

After both products arrived, I went around our house and found that all outlets on our GCFI circuit did indeed show an open ground. The GCFI outlet is in our master bathroom and protects two more bathrooms, in addition to the master bedroom, the patio outlet, and an outlet in our garage.

Since we were going to need to go through and check all of our 33 year old outlets and switches, we decided to change them all to updated Leviton® versions, especially the outlets to tamper-resistant (and from ivory to white), which we proceeded to complete, after shutting off that circuit and using the live wire tester from this set to confirm the circuit was off. But as we checked the dozen or so outlets and switches on the GCFI circuit, none of them had open/disconnected grounds, yet both outlet testers still showed we had an open ground when we flipped the circuit back on.

The only other option was likely an open ground in one of the electrical boxes in our attic that would be in the circuit 'before' the GCFI outlet, so I climbed up into the attic through my closet (BTW, I ordered a new Xtend and Climb® 760p+ 10.5' telescoping ladder for easier access to our attic and it works great! I did a review of that too).

The first electrical box I checked is right above my closet, right next to the access opening. I took off the cover to that electrical box and immediately noticed the ground wire to the switch for the light in my closet wasn't connected to the other ground wires coming in and going out of the box. It had been like this since our house was built in 1988 and we had no idea!

I took a picture with my phone and came down from the attic to show my husband. He asked me to turn the circuit off again and he grabbed the wire nuts and extra copper wire we already had in the house as we searched for the open ground and headed up to the attic. He pig-tailed the ground wire to include the light switch, closed up the box, and came back down from the attic.

As he went back outside to reset the circuit breaker, we were talking to each other on our phones, I plugged in the Gardner Bender® GK-5 outlet tester into the GCFI outlet in our bathroom.....TWO yellow lights! No more open ground, but just to make sure it was correct, I used the yellow Sperry® outlet tester in an outlet in another bathroom....TWO yellow lights!

I've since used the battery tester and USB tester included in this set and they both work great as well! In fact, the battery tester confirmed that some of the AA batteries we thought were dead, actually had some life still in them, so we didn't end up throwing away good batteries.
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Top reviews from other countries

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Pierre-Hugues Gingras
5.0 out of 5 stars Excellent
Reviewed in Canada on December 29, 2023
Fabian Espinosa Pozos
5.0 out of 5 stars Cumple lo que ofrece
Reviewed in Mexico on August 20, 2021
Amazon Customer
5.0 out of 5 stars Great value
Reviewed in Canada on May 5, 2022
2 people found this helpful
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Panchoram
5.0 out of 5 stars Buen precio y la entrega muy rapida
Reviewed in Mexico on March 18, 2021
Hayden
5.0 out of 5 stars Works good
Reviewed in Canada on June 19, 2023