---
product_id: 748753355
title: "Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time"
brand: "klein tools"
price: "₨7513"
currency: SCR
in_stock: true
url: https://www.desertcart.sc/products/748753355-klein-tools-rt390-circuit-analyzer-with-large-lcd-identifies-wiring
store_origin: SC
region: Seychelles
---

# Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time

**Brand:** klein tools
**Price:** ₨7513
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time by klein tools
- **How much does it cost?** ₨7513 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/748753355-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

## Description



## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BT87LJRL |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #33,329 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #63 in Circuit Testers |
| Brand | KLEIN TOOLS |
| Color | Orange |
| Customer Reviews | 4.8 4.8 out of 5 stars (227) |
| Date First Available | January 27, 2023 |
| Finish | Brushed |
| Global Trade Identification Number | 00092644693632 |
| Included Components | 3 x AAA Batteries, Instructions, and Pouch |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item dimensions L x W x H | 7.07 x 2.72 x 1.51 inches |
| Item model number | RT390 |
| Manufacturer | Klein Tools |
| Material | Blend |
| Measurement Type | Voltmeter, Ammeter, Ohmmeter, Time-based |
| Min. Operating Voltage | 135 Volts (AC) |
| Part Number | RT390 |
| Pattern | Circuit Analyzer |
| Power Source | Battery Powered |
| Product Dimensions | 7.07 x 2.72 x 1.51 inches |
| Shape | Rectangular |
| Size | One Size |
| Specification Met | Cat Iii 135v, Afci, Gfci, Ul, Fcc |
| Style | Receptacle Tester w/Load Test |
| UPC | 092644693632 |
| Upper Temperature Rating | 55 Degrees Celsius |

## Product Details

- **Brand:** KLEIN TOOLS
- **Power Source:** Battery Powered
- **Style:** Receptacle Tester w/Load Test
- **Color:** orange
- **Item Weight:** 0.49 Pounds

## Images

![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time - Image 1](https://m.media-amazon.com/images/I/51n2Tv4OxkL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time - Image 2](https://m.media-amazon.com/images/I/61dL1IUkdTL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time - Image 3](https://m.media-amazon.com/images/I/614yoSvuN-L.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time - Image 4](https://m.media-amazon.com/images/I/71FxkqNd7pL.jpg)
![Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time - Image 5](https://m.media-amazon.com/images/I/61UorKMK6zL.jpg)

## Questions & Answers

**Q: does this actually place a load on the circuit for for voltage drop?**
A: It simulates a 12,15, and 20 amp load and displays the percentage drop, according to the operating instructions.

**Q: Will this indicate open neutral or open ground when circuit is not energized?**
A: Way late on answer this.
If you’re talking about (Klein Tools RT210 Outlet Tester) then no, it has to have power on the circuit as this is not battery powered to show the tester how it’s wired.

**Q: Does this simulate and test both serial and parallel arc fault conditions?**
A: This tester plugs into an outlet on the circuit under test, so it seems to me that automatically makes it a parallel device. Therefore it can only simulate an arc fault such as might occur in a parallel device, i.e. what you normally plug into an outlet. (A typical faulty item being be a lamp with a frayed power cord.) I believe the tester would have to be wired into the circuit in series to simulate a serial arc fault. I don't know the nature of the tester's design but it may be that tripping an AFCI unit (an AFCI outlet, for instance) with a parallel fault simulation may also prove the AFCI's ability to respond to a serial arc fault, at least in part. Disclaimer: I'm not an electrician or EE so you may want to dig farther on this subject, but I believe I have the basics right.

**Q: Does this protect trip a gfci protected receptacle with an open ground?**
A: No it will not. No tester will trip a GFCI with open ground. You have to use the button on the receptacle/breaker in that case. Make sure the outlet is labeled with "no equipment ground."

## Frequently Bought Together

- Klein Tools RT390 Circuit Analyzer with Large LCD, Identifies Wiring Faults, GFCI and AFCI Tester, Voltage Drop, Displays Trip Time
- Klein Tools 69411 Circuit Breaker Finder Accessory Kit, Circuit Breaker Leads, Circuit Breaker Adapters

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-01-26*