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⚡ Power Up Your Precision — Test Smarter, Work Safer!
The Klein Tools RT390 Circuit Analyzer is a professional-grade electrical tester featuring a large color LCD for easy-to-read results. It detects common wiring faults, inspects AFCI and GFCI devices with trip time and current display, and measures voltage drop under 12A, 15A, and 20A loads. Designed for North American 120V AC outlets, this battery-powered tool combines durability and precision, making it an essential device for electricians and serious DIYers alike.
| 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
2 months ago
1 day ago