Klein Tools RT110 Receptacle T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.99
$12.93

Klein Tools RT110 Receptacle Tester

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Model: RT110
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$62.99
$12.93
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Receptacle Tester
  • Warnings

    • Always wear approved eye protection.
    • Always consult a qualified electrician to resolve wiring problems.
    • Read, understand, and follow all warnings and instructions before operating testers.
  • Features

    • Nominal Voltage - 110/125V AC at 50/60Hz in 3-wire outlet
    • Designed to detect the most common wiring problems in standard receptacles
    • Outlet tester's light sequence on receptacle tester indicates correct/incorrect wiring
    • Operating temp - 32-degrees F to 140-degrees F (0-degrees C to 40-degrees C)
    • Receptacle tester conforms to UL Std 1436, Certified to CSA Std C22.2 #160
    • Built to withstand a 6.6-foot (2m) drop


RT110 - spec sheet

Manufacturer Resources

Product Specs

Accessories:
ET60
Drop Protection:
6.6' (2 m)
Gfci:
No
Item Depth:
3.0000 in
Item Height:
1.6250 in
Item Weight:
0.1220 lbs
Item Width:
1.8750 in
Overall Height:
2.88" (7.3 cm)
Overall Length:
1.62" (4.1 cm)
Overall Width:
1.88" (4.8 cm)
Department:
Electrical
Product Group:
Test & Measurement
Product Subgroup:
Electrical Testers
Product Voltage:
110/125V AC at 50/60Hz in 3-Wire Outlet
Product Weight:
1.9 oz (54 g)
Product Type:
Receptacle Tester
Product Height:
1.625 in
Product Depth:
3 in
Product Width:
1.875 in

Klein Tools RT110 – Frequently Asked Questions

1) Will the Klein Tools RT110 receptacle tester test GFCI outlets or trip a GFCI?
No. The RT110 has no GFCI trip button, so it will not test GFCI protection or trip a GFCI device. It checks wiring on standard 3-wire 110/125V AC receptacles only. If you need GFCI trip testing on the job, you need a tester with a dedicated GFCI trip function instead.
2) What wiring faults does the Klein RT110 actually find in a receptacle?
It is built to detect the most common wiring problems in standard receptacles. The light sequence on the face tells you whether the outlet is wired correctly or not, so you read the pattern rather than a display. Klein's guidance on the tester is to bring in a qualified electrician to correct anything it flags.
3) Can I use the Klein RT110 on 220V or 240V outlets, or on a two-prong outlet?
No on both counts. The RT110 is rated 110/125V AC at 50/60Hz in a 3-wire outlet. It needs a grounding conductor to read the wiring, so it does not work in an ungrounded two-prong receptacle, and it is not a 220/240V instrument.
4) Does the Klein RT110 receptacle tester meet UL and CSA standards for facility use?
Yes. The RT110 conforms to UL Std 1436 and is certified to CSA Std C22.2 #160, which is what most institutional and MRO specs ask for on a receptacle wiring tester.
5) Is the Klein RT110 tough enough to live in a tool pouch on a commercial job?
It is built to withstand a 6.6 foot (2 m) drop, which covers a fall from a ladder step or a belt height onto a slab. At 1.9 oz (54 g) and roughly 2.88 x 1.88 x 1.62 inches it takes up almost no room in a pouch.
6) For a property manager turning units, is the RT110 enough to sign off on outlets?
It tells you whether a standard grounded 110/125V receptacle is wired correctly or not, which is the fast walk-through check across a building. What it will not do is verify GFCI protection in kitchens, baths, garages or exteriors, since it has no GFCI trip function. Pair it with a GFCI trip tester for those locations, and have an electrician correct anything the light sequence flags.
7) Can I leave a Klein RT110 in the truck through winter or use it in an unconditioned building?
Operating range is 32 to 140 degrees F (0 to 40 degrees C). Below freezing it is outside its rated operating window, so let it come up to temperature before you trust a reading in an unheated crawlspace or a cold vehicle.
8) Is there an accessory that extends what the Klein RT110 can reach or test?
Klein lists the ET60 as an accessory for the RT110. Order it separately if you want it; it does not come with the tester.
How fast can I get the Klein Tools RT110 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools RT110 come with a warranty?
Absolutely. The Klein Tools RT110 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools RT110?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools RT110 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.