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⚡ Stay ahead of electrical risks with the RT390 — the pro’s ultimate circuit guardian!
The Klein Tools RT390 Circuit Analyzer is a professional-grade electrical tester featuring a large color LCD for easy fault identification, AFCI and GFCI testing with trip time display, and precise voltage drop measurement at multiple load levels. Designed for North American 120V outlets, it offers unmatched diagnostic accuracy and rugged durability, making it an essential tool for electricians, inspectors, and serious DIYers committed to safety and performance.
| ASIN | B0BT87LJRL |
| Brand | KLEIN TOOLS |
| Colour | Orange |
| Customer Reviews | 4.8 out of 5 stars 241 Reviews |
| Global Trade Identification Number | 00092644693632 |
| Included Components | 3 x AAA Batteries, Instructions, and Pouch |
| Item Dimensions | 18 x 6.9 x 3.8 centimetres |
| Item Type Name | Circuit Analyzer |
| Item Weight | 0.49 Pounds |
| Item dimensions L x W x H | 18 x 6.9 x 3.8 centimetres |
| Item weight | 0.49 Pounds |
| Manufacturer | Klein Tools |
| Maximum Operating Voltage | 120 Volts |
| Measurement Type | Voltmeter, Ammeter, Ohmmeter, Time-based |
| Minimum Operating Voltage | 135 Volts (AC) |
| Model Number | RT390 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Specification Met | Cat Iii 135v, Afci, Gfci, Ul, Fcc |
| Style | Receptacle Tester w/Voltage Drop |
| Style Name | Receptacle Tester w/Voltage Drop |
| UPC | 092644693632 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 55 Degrees Celsius |
M**T
Standalone best wiring integrity tester!
E**A
Muy bueno pero las baterías que trae son basura
Lo único vamos del producto es que las baterías se dañan muy rápido, hablo que una semana después de ponerlas se vaciaron :( así que recomiendo quitarlas cada que no lo usen o ponerle desde el principio unas de buena calidad
L**Y
A unique tool. Expensive
A**R
Great product
J**.
Great for checking receptacles for more than just correct wiring
Trustpilot
Hace 4 días
Hace 1 semana