---
product_id: 229974841
title: "Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390"
brand: "klein tools"
price: "C$17254"
currency: NIO
in_stock: true
url: https://www.desertcart.ni/products/229974841-digital-clamp-meter-auto-ranging-400-amp-measures-electronic-ac
store_origin: NI
region: Nicaragua
---

# 400A AC/DC current clamp True RMS auto-ranging tech Magnetic hanger & test lead holder Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390

**Brand:** klein tools
**Price:** C$17254
**Availability:** ✅ In Stock

## Summary

> ⚡ Clamp, Test, Conquer – Power Your Precision!

## Quick Answers

- **What is this?** Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390 by klein tools
- **How much does it cost?** C$17254 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/229974841-digital-clamp-meter-auto-ranging-400-amp-measures-electronic-ac)

## 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

- • **All-in-One Testing:** From voltage and resistance to capacitance and temperature, this meter covers every essential electrical parameter.
- • **Hands-Free Efficiency:** Integrated magnetic hanger and side test lead holder keep your hands free for multitasking on the job.
- • **Precision Meets Power:** Accurately measures AC/DC current up to 400 amps with True RMS technology for flawless diagnostics.
- • **Safety Certified & Ready:** CE and CATIII 600V certified with double insulation for professional-grade safety and reliability.
- • **See Clearly, Work Confidently:** High-visibility reverse contrast LCD ensures crystal-clear readings in any lighting condition.

## Overview

The Klein Tools CL390 Digital Clamp Meter is a professional-grade, auto-ranging tester designed for accurate AC/DC current measurement up to 400 amps using True RMS technology. Featuring a high-visibility reverse contrast LCD, integrated non-contact voltage tester, magnetic hanger, and comprehensive multi-parameter testing capabilities, it ensures hands-free convenience and reliable performance. Certified to CATIII 600V standards with double insulation, it’s the ultimate tool for electricians and technicians demanding precision and safety.

## Description

Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390

## Features

- Test lead holder on side of clamp and optional magnetic hanger for meter (Cat. Nos. 69445 or 69417) for hands free operation
- Non-contact voltage tester integrated into the clamp jaw
- High-visibility reverse contrast LCD display for improved view ability in all ambient lighting conditions
- Automatically ranging True Root Mean Squared (TRMS) measurement technology for accuracy
- Measures AC/DC current and NCVT via clamp and AC/DC voltage, resistance, frequency, DC microamps, capacitance, duty cycle, diode test, and continuity via test-leads, and temperature with thermocouple

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Klein Tools |
| Part Number | CL390 |
| Product Dimensions | 21.46 x 8.92 x 3.84 cm; 235.87 g |
| Batteries | 1 AAA batteries required. (included) |
| Item model number | CL390 |
| Size | 1.6'' (4.1 cm) |
| Colour | Black |
| Style | 400A AC/DC Current |
| Material | ABS/Electronics |
| Pattern | Clamp Meter |
| Power Source | Battery Powered |
| Item Package Quantity | 1 |
| Certification | CE, CATIII 600V, Class 2, Double Insulation |
| Special Features | Automatically Ranging True Root Mean Squared (TRMS) Measurement Technology for Accuracy; AC/DC Current Measurement; High Visibility Reverse Contrast LCD; NCVT |
| Included Components | Clamp Meter, Carrying Case, Instructions, Test Leads, Thermocouple, and Batteries |
| Batteries included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Item Weight | 236 g |

## Product Details

- **Brand:** KLEIN TOOLS
- **Power source:** Battery Powered
- **Style:** 400A AC/DC Current
- **Colour:** Black
- **Item weight:** 236 g

## Images

![Digital Clamp Meter, Auto Ranging 400 AMP Measures Electronic AC/DC Voltage AC/DC Current Resistance and TRMS, Klein Tools CL390 - Image 1](https://m.media-amazon.com/images/I/61SZVlG2X+L.jpg)

## Available Options

This product comes in different **Style Name** options.

## Questions & Answers

**Q: Does it measure inrush**
A: If you use the min/max function and put it on max amps and the reading you get will be your inrush current reading. Hope this helps.

**Q: What is the difference between the cl390 and the cl380 meter?**
A: They are very similar, the CL390 has the additional probe holder on the clamp to assist with one hand operation and a slightly different design layout.

**Q: is it made in usa?**
A: No, China.

**Q: In which country is this product manufactured?**
A: The vast majority of the Klein tools are made in the USA. The exact percentage changes frequently as the insource of some products to their USA plants and new products lineup get added. Klein has introduced many new US-manufactured products in recent years (hole-making, screwdrivers, fish tapes, utility wrenches, buckets, bags, etc.). Klein tools has invested in four new US manufacturing facilities in the past decade, and have invested heavily in new equipment and tooling in their plants to expand our capacity and quality.

## Frequently Bought Together

- Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging, 400 Amp, NCVT Tester, Hi-Viz LCD Display, TRMS, Continuity Resistance, Temperature and More
- Klein Tools 69417 Rare-Earth Magnetic Hanger, with Strap
- Klein Tools 69409 Line Splitter for Clamp Meter, Measures up to 15A Current Draw, 10x Measurement, Designed for North American Outlets

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**Shop now:** [https://www.desertcart.ni/products/229974841-digital-clamp-meter-auto-ranging-400-amp-measures-electronic-ac](https://www.desertcart.ni/products/229974841-digital-clamp-meter-auto-ranging-400-amp-measures-electronic-ac)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-07*