MANUFACTURER SPECIFICATION GUIDE
Klein Tools RT210 GFCI Outlet Tester
Klein Tools describes RT210 as a wiring and GFCI outlet tester for its stated 110–125 V application. A tester indication does not certify an entire electrical installation.
Source review: Oct 2026 · ASIN: B01AKX8L0M · Not a test date
Manufacturer-published specifications
These are published ratings, not results measured by us. Missing specifications are omitted rather than estimated.
| Function | Wiring + GFCI test |
|---|---|
| Voltage | 110–125 V |
| Test category / standard | CAT II 300 V |
Ratings can differ by revision and regional variant. Match the current product label and manual to the listing before purchase.
Conditions & limits to check
- Read the RT210 manual for detectable faults, test limitations and operating procedure.
- We have not tested detection accuracy or protective-device operation. A displayed result is not this site’s approval of a campground circuit.
Before selecting this item, check the manufacturer's current instructions for the exact model. We have not verified its suitability for your device, campsite or electrical installation.
Read the category buying checklist →Manufacturer sources
Published information used for this guide. Manufacturer documents hosted by another service are identified below. A source does not replace the current operating manual.
- Klein Tools manufacturer informationwww.kleintools.com
- Klein Tools manufacturer catalogwww.kleintools.com
Manufacturer documentation references ETL. We have not independently audited certification status; these references do not validate an assembled system.
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