Klein RT600 Receptacle Tester - Canadian Woodworking Magazine

Painless and foolproof receptacle testing.


Klein RT600 Receptacle Tester

If you're planning to do renovations in your home or shop that will involve re-wiring, then a receptacle tester (or outlet tester) is a useful tool to have on hand. Electricians, any anyone else who works with volts and wires on a regular basis, will know the value of this little accessory.

A receptacle tester is safe and super easy to use - simply insert it into a receptacle, and then read the screen. The tester will detect the most common wiring problems in a standard 120V receptacle. To confirm that GFCI receptacles are wired properly you simply press a button on the RT600 after inserting it into the receptacle.


The Klein RT600 Receptacle Tester, which conforms to CSA Standard C22.2 #160 for voltage and polarity testers, checks for the following:
  • correct wiring
  • open ground (ground plug is not connected)
  • open neutral (neutral or 'white' wire is not connected)
  • open hot (hot or 'black' wire is not connected)
  • hot and ground reversed neutral or 'white' wire registering hot)
  • hot and neutral reversed or reverse polarity (neutral and hot wires are reversed on the receptacle)
  • hot on neutral with hot open (combination of open neutral and reverse polarity - not a common occurrence)
What it doesn't test for is multiple hot wires, combinations of defects, reversal of grounded and grounding conductors.
The RT600 is a great size for slipping into a pocket or toolbox. I like the slightly curved sides with their slip-resistance ribbing - they make it easy to insert and retract the prongs of the tester. Also, the dials are large and bright enough to read easily, even in bright lighting conditions.


Deciphering the three display lights is easy because of the diagram printed on the face of the tester. Which makes this tool, virtually fool proof to use.
The RT600 will be of interest to electricians, renovators who do any amount of re-wiring, DIYers who are doing any major renovations, and building inspectors.
  • 7 test functions
  • 1-1/8" x 1-3/4" x 3-5/8 (from tip of progs)
  • 2 ounces
  • CSA Standard C22.2 #160 compliant
  • GFCI test current: 6 mA to 9mA

COMPANY:Klein Tools
PRICE:$40 (US)
SOURCE:Retailer Locator
Carl Duguay, July 2013


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