---
product_id: 320688475
title: "Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging, 400 Amp, NCVT Tester Clamp Jaw Integration, Hi-Viz LCD Display, Reverse Contrast Display, TRMS and More"
brand: "klein tools"
price: "€ 245.37"
currency: EUR
in_stock: true
reviews_count: 5
category: "Klein Tools"
url: https://www.desertcart.sk/products/320688475-klein-tools-cl390-ac-dc-digital-clamp-meter-auto-ranging
store_origin: SK
region: Slovakia
---

# 400A AC/DC current clamp Hi-Viz reverse contrast LCD Integrated NCVT clamp jaw Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging, 400 Amp, NCVT Tester Clamp Jaw Integration, Hi-Viz LCD Display, Reverse Contrast Display, TRMS and More

**Brand:** klein tools
**Price:** € 245.37
**Availability:** ✅ In Stock

## Summary

> ⚡ Clamp, Test, Conquer – The Klein Tool for the Millennial Pro

## Quick Answers

- **What is this?** Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging, 400 Amp, NCVT Tester Clamp Jaw Integration, Hi-Viz LCD Display, Reverse Contrast Display, TRMS and More by klein tools
- **How much does it cost?** € 245.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/320688475-klein-tools-cl390-ac-dc-digital-clamp-meter-auto-ranging)

## 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

- • **Compact Yet Robust:** Lightweight 236g design built tough for one-handed operation on the go.
- • **Hands-Free Efficiency:** Optional magnetic hanger and side test lead holder keep your hands free for the job.
- • **Precision Meets Power:** True RMS auto-ranging for ultra-accurate AC/DC current and voltage readings.
- • **All-in-One Diagnostic Tool:** Integrated non-contact voltage tester in clamp jaw for quick, safe voltage detection.
- • **See Clearly, Work Confidently:** High-visibility reverse contrast LCD ensures flawless readability in any lighting.

## Overview

The Klein Tools CL390 is a professional-grade, auto-ranging TRMS digital clamp meter designed for precise AC/DC current and voltage measurement up to 400 amps. Featuring an integrated non-contact voltage tester, a high-visibility reverse contrast LCD for all lighting conditions, and hands-free operation options, it’s engineered for efficiency and accuracy in demanding electrical diagnostics.

## Description

Klein Tools CL390 is an automatically ranging true root mean squared (TRMS) digital clamp meter. It measures AC/DC current and NCVT via the clamp, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, and diodes via test leads, and temperature via a thermocouple probe. It features a high visibility, reverse contrast LCD display that optimizes view ability both in dark or bright ambient lighting.

Review: Ea genial complemento y cumple con lo que ofrece, si eres técnico de aires acondicionados, esto es lo que necesitas para diagnósticos y reparación de sistema standar o inverter.
Review: Solid as a rock build that is super easy to operate one handed. Screen is really bright and easy to read. Has all the features you need and reads really accurately. Case is great to keep odds and ends in but can't fit a line splitter. Another impressive one from Klein!

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DTDCG7T |
| ASIN  | B08DTDCG7T |
| Batteries | 1 AAA batteries required. (included) |
| Batteries  | 1 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #61,989 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #279 in Multi Testers |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,788) |
| Customer reviews | 4.7 4.7 out of 5 stars (1,788) |
| Date First Available | 28 July 2020 |
| Date First Available  | 28 July 2020 |
| Department  | Unisex-Adult |
| Included components | AC/DC Digital Clamp Meter |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 236 g |
| Item model number | CL390 |
| Item model number  | CL390 |
| Manufacturer | KLEIN TOOLS |
| Manufacturer  | KLEIN TOOLS |
| Material | ABS/Electronics |
| Part number | CL390 |
| Pattern | Clamp Meter |
| Power source type | Battery Powered |
| Product Dimensions | 21.46 x 8.92 x 3.84 cm; 235.87 g |
| Product Dimensions  | 21.46 x 8.92 x 3.84 cm; 235.87 g |
| Size | 1.6'' (4.1 cm) |
| Special Features | Automatically Ranging True Root Mean Squared (TRMS) Measurement Technology for Accuracy; AC/DC Current Measurement; High Visibility Reverse Contrast LCD; NCVT |
| Specification met | CE, IEC 61010 |
| Style | 400A AC/DC Current |

## Product Details

- **Brand:** KLEIN TOOLS
- **Colour:** Black
- **Item weight:** 0.52 Pounds
- **Power source:** Battery Powered
- **Style:** 400A AC/DC Current

## Images

![Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging, 400 Amp, NCVT Tester Clamp Jaw Integration, Hi-Viz LCD Display, Reverse Contrast Display, TRMS and More - Image 1](https://m.media-amazon.com/images/I/61SZVlG2X+L.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 26 February 2026*

Ea genial complemento y cumple con lo que ofrece, si eres técnico de aires acondicionados, esto es lo que necesitas para diagnósticos y reparación de sistema standar o inverter.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 16 January 2026*

Solid as a rock build that is super easy to operate one handed. Screen is really bright and easy to read. Has all the features you need and reads really accurately. Case is great to keep odds and ends in but can't fit a line splitter. Another impressive one from Klein!

### ⭐⭐⭐⭐⭐ Review
*by D***G on 20 November 2025*

Was looking for a comprehensive meter to handle a number of diagnostic tasks around home (AC120v) and around an RV for electrical and appliance diagnostics. (DC12v & AC120v). This seemed like a great choice and has performed very well. We are very happy with this purchase

## 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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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-11*