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Four-piece electrical tester kit in blister packaging

Electrical System Tools

SKU CH-HTNP-7WH2R

Four-piece kit tests AC voltage without contact, checks GFCI outlets for six wiring faults, measures AA-to-9V battery charge, and verifies USB port voltage and polarity

  • Team affiliation1 Piece
  • Key featuresNon-Contact Voltage Sensor, GFI Outlet Tester, USB Tester, B
  • Overall height6.5 L x 1.5 W x 11 H inches
  • Overall width6.5 L x 1.5 W x 11 H inches
  • Overall length6.5 L x 1.5 W x 11 H inches
  • Product weight5 oz
  • Complete 4-in-1 kit covers voltage, GFCI, battery and USB testing
  • Non-contact voltage detection checks AC presence without touching live conductors
  • GFCI outlet tester identifies six wiring faults including open ground and hot/neutral reverse
  • Universal battery checker tests AA, AAA, C, D and 9V cells for remaining charge
  • USB port tester verifies voltage presence and correct polarity on USB sockets

What the kit contains

The nVent Gardner Bender GK-5 kit combines four testers in one package: a non-contact voltage sensor, a GFCI receptacle tester, a USB port tester and a universal battery checker. It is aimed at homeowners and DIYers who want a single set for routine electrical checks around the house. Builders who need a second card or buyers who want more storage will not find those functions here.

Behaviour during extended use

The non-contact voltage sensor (model GVD-3504) detects AC voltage from 110 to 125 VAC without touching live conductors, and the GFCI tester identifies six wiring conditions including open ground, open neutral and hot/ground reverse. Both tools are battery powered and designed for intermittent checks rather than continuous monitoring under sustained load.

Installation and common issues

Each tester is ready to use straight from the box; the voltage sensor and battery checker operate on included cells, while the GFCI and USB testers simply plug into an outlet or port. The kit measures 6.5 by 1.5 by 11 inches and weighs 5 ounces. A frequent mistake is using the GFCI tester on circuits outside the 110-125 VAC range, which it does not support.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $26.99
Cheaper than about 58% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameGardner Bender
Product typeVoltmeter
Size & build
Overall height6.5 L x 1.5 W x 11 H inches
Overall width6.5 L x 1.5 W x 11 H inches
Overall length6.5 L x 1.5 W x 11 H inches
Product weight5 oz
More details
Team affiliation1 Piece

Questions about this item

Does the non-contact voltage sensor need batteries to run all day?

Yes, the kit is battery powered, so the sensor requires batteries to operate continuously.

What type of outlets must I already have for the GFCI tester to work?

The GFCI receptacle tester works on 110-125 VAC receptacles only.

Can the USB tester check the ports on my older computer?

The USB tester plugs into a USB port and uses an indicator bulb to show voltage presence, wiring and polarity.

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