
Kobalt ET-18 GFCI Receptacle Tester 125 V
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Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Kobalt ET-18 is a plug-in analog tester for 110V to 125V three-wire outlets. It checks standard receptacles and has a GFCI test function, so you can confirm a ground-fault outlet trips as it should. It is a simple, single-purpose tool for homeowners and DIYers rather than an electrician's full diagnostic kit. Against digital testers it gives less detail, but it needs no battery and no setup.
In stock
Store links may earn us a commission. Price via Klarna.
Lowest price we've seen: $9.98 on Nov 11 at Lowe's. Tracked across 1 store since Nov 11.
The Kobalt ET-18 is a GFCI receptacle tester for 3-wire outlets. It tests receptacles from 110V to 125V and shows results on an analog display.
It is sold individually and comes in black. No battery is included.