---
product_id: 737641148
title: "Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x"
brand: "klein tools"
price: "VT76733"
currency: VUV
in_stock: true
category: "Klein Tools"
url: https://www.desertcart.vu/products/737641148-klein-tools-rt390-circuit-analyzer-with-large-lcd-identifies-wiring
store_origin: VU
region: Vanuatu
---

# Detects wiring faults including AFCI & GFCI Large color LCD for clear diagnostics 10x Line Splitter for precise current measurement Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x

**Brand:** klein tools
**Price:** VT76733
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Electrical Inspections with Precision & Clarity!

## Quick Answers

- **What is this?** Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x by klein tools
- **How much does it cost?** VT76733 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/737641148-klein-tools-rt390-circuit-analyzer-with-large-lcd-identifies-wiring)

## Best For

- klein tools enthusiasts

## Why This Product

- Trusted klein tools brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Fault Detection:** Pinpoint open neutral and ground issues to ensure top-tier electrical safety.
- • **Crystal-Clear Color LCD:** Instantly decode wiring faults and trip times with vibrant, easy-to-read visuals.
- • **Universal Compatibility:** Seamlessly pairs with all Klein clamp meters and standard multimeters for versatile testing.
- • **AFCI & GFCI Trip Analysis:** Measure device trip time and current for reliable, code-compliant inspections.
- • **10x Line Splitter Precision:** Amplify current measurements for unmatched accuracy with clamp meters.

## Overview

The Klein Tools RT390 Circuit Analyzer combines a large color LCD with advanced wiring fault detection, including AFCI and GFCI trip time analysis. Paired with the 69409 10x Line Splitter, it delivers precise current measurements up to 15A without load cord splitting. Designed for North American 120V outlets and compatible with all Klein clamp meters, this professional-grade tool ensures thorough, reliable electrical diagnostics trusted by experts since 1857.

## Description

Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip TimeThe Klein Tools RT390 is a Circuit Analyzer that tests the wiring conditions at an electrical outlet, displays AC line voltage, inspects AFCI and GFCI devices with time to trip device, and performs voltage drop tests at 12A, 15A and 20A current loads. Results are easy to understand with large, color LCD. The tester is designed for use with North American 120V AC 3-wire electrical outlets. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.Klein Tools 69409 Line Splitter 10xThe Klein Tools 69409 Line Splitter separates hot from neutral and ground wires on standard 120-Volt outlets so that current measurements can be made with a current clamp. Without the Line Splitter, the current clamp measures the load current going in both directions, effectively cancelling the measurement. The Line Splitter has a standard measurement section and ten-times multiplier section for use with less accurate or higher ranged clamp meters. It was designed for use with Klein Tools clamp meters but will also function with many other manufacturers' clamp meters.

## Features

- Product 1: CLEAR COLOR LCD DISPLAY: Circuit Analyzer with large color LCD provides easy-to-understand results for wiring faults, AFCI, GFCI, voltage drops, and device trip time
- Product 1: COMPREHENSIVE WIRING FAULT DETECTION: Detect and identify common wiring faults in standard, AFCI, and GFCI electrical outlets, ensuring thorough evaluation
- Product 1: DUAL WIRING FAULT DETECTION: Capable of detecting dual wiring faults, including open neutral and open ground, enhancing safety measures
- Product 1: AFCI AND GFCI DEVICE INSPECTION: Inspect AFCI and GFCI devices, measuring trip time and trip current for accurate functionality assessment
- Product 2: Allows the measuring of current draw up to 15A without splitting the load's power cord
- Product 2: For use with all Klein clamp meters
- Product 2: Can be used to perform voltage checks with standard multimeter probes
- Product 2: Provides 10X measurement mode

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CX5H34MG |
| Brand | Klein Tools |
| Color | Orange |
| Date First Available | March 5, 2024 |
| Item model number | c9253482-7672-4ee7-8801-07a349fd57bd |
| Manufacturer | Klein Tools |
| Min. Operating Voltage | 120 Volts (AC) |
| Power Source | Corded Electric |
| Specification Met | CE, UL |

## Product Details

- **Brand:** Klein Tools
- **Color:** Orange
- **Min. Operating Voltage:** 120 Volts (AC)
- **Power Source:** Corded Electric
- **Specification Met:** CE, UL

## Images

![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x - Image 1](https://m.media-amazon.com/images/I/21HsJnIdc4L.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x - Image 2](https://m.media-amazon.com/images/I/31A4r-i7oAL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x - Image 3](https://m.media-amazon.com/images/I/41CUR-YzspL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x - Image 4](https://m.media-amazon.com/images/I/41qqukdQnKL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester & 69409 Line Splitter 10x - Image 5](https://m.media-amazon.com/images/I/516yOmsSbjL.jpg)

## Available Options

This product comes in different **Pattern** options.

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-09*