400 Amp AC/DC Digital Clamp Meter, Auto-Ranging
- Clamp Meter measures current, voltage, resistance and continuity
- Digital Meter has auto-ranging TRMS technology for accuracy
- Includes a carrying case, test leads, thermocouple, and batteries
- See More Details
Frequently Bought Together
Product Overview
Work Safely
These Clamp Meters all meet CAT III 600V, Class 2, Double Insulation Safety Rating
Clamp Meters for the Work You Do
Klein Tools' Clamp Meters meet requirements for use in basic and controlled electromagnetic environments like residential, office and light-industrial locations
Work Tough
Durable, multi-function meters built to withstand a 2 meter drop
Features You Need
Auto-Range, Hold, Data Hold, and Max value
Auto-Power Off
Meters feature auto-power off after 10 minutes to conserve battery life; low battery indicator and easily accessible battery compartment to keep you going
Multi-function Clamp Meters
Clamp Meters measure AC current and Non-Contact Voltage via the clamp and AC/DC voltage, resistance and continuity via test leads
Meters for the Way You Work
Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with time-saving features
CL390 AC/DC Digital Clamp Meter, Auto-Ranging 400 Amp
Automatically ranging true root mean squared (TRMS) digital clamp meter measures AC/DC current, NCVT, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, diodes, and temperature
CL120KIT Clamp Meter Elecrrical Test Kit
Kit with Klein Tools' Cat. No. CL120, the Cat. No. RT210 GFCI Receptacle Tester, and the Cat. No. 69409 Line Splitter 10x
CL120 Digital Clamp Meter, AC Auto-Rnging 400 Amp
Automaticallty ranging digital clamp meter that measures AC current, NCVT, AC/DC voltage, resistance and continuity
CL320 HVAC Digital Clamp Meter, AC Auto-Ranging 400 Amp
Automatically ranging true root mean square (TRMS) digital clamp meter measures AC current, NCVT, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, diodes, and temperature
CL220 AC Auto-Ranging Digital Clamp Meter, 400 Amp w/Temp
Automatically ranging true root mean squared (TRMS) digital clamp meter measures AC current, NCVT, AC/DC voltage, continuity, and temperature
Klein Tools Quality
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
- California residents
- 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
- Measures temperature with a K-Type thermocouple probe
- Max/Min, Rel/Zero and Data Hold capability
- Auto-power off after 10 minutes to conserve battery life
- Includes a carrying case, test leads with CAT III/CAT IV safety caps, thermocouple, instructions, and 3 x AAA batteries
- Low battery indicator and easily accessible battery compartment
- Built to withstand a 6.6-Foot (2 m) drop
- CAT III 600V, Class 2, Double insulation safety rating
- Meets requirements for use in basic and controlled electromagnetic environments like residential, office and light-industrial locations
- Shop all Klein Tools multimeters here
- Click here for more information on Electronic Recycling Programs
Product Overview
- Clamp Meter measures current, voltage, resistance and continuity
- Digital Meter has auto-ranging TRMS technology for accuracy
- Includes a carrying case, test leads, thermocouple, and batteries
Compare Similar Multimeters
 | |  |  | |
| Brand | Klein Tools | Klein Tools | Klein Tools | Klein Tools |
| Name | 1000V Auto-Ranging Digital Multimeter | 400 Amp AC/DC Digital Clamp Meter, Auto-Ranging | 600 Amp AC True RMS Auto-Ranging Digital Clamp Meter with Temp | True RMS Auto-Ranging Digital Multimeter |
| Price | $6997 | $8654 | $9997 | $9997 |
| Ratings | (179) | (50) | (79) | (82) |
| Test Meter Type | Clamp/Multimeter | Clamp/Multimeter | Clamp/Multimeter | Clamp/Multimeter |
| Display Type | LCD | LCD | LCD | LCD |
| Electrical Tools Features | Audible Alert,Auto Ranging,Backlit,DC Polarity Indicator,Data Hold,Handheld,Integral Lead Storage,Interchangeable Leads | Auto Ranging,Backlit,Battery Powered,Built-in Clamp,Data Hold,Handheld,Interchangeable Leads,Tests Continuity,Tests Resistance | Audible Alert,Auto Ranging,Backlit,DC Polarity Indicator,Data Hold,Handheld,Integral Lead Storage,Interchangeable Leads | Audible Alert,Auto Ranging,Backlit,DC Polarity Indicator,Data Hold,Handheld,Integral Lead Storage,Interchangeable Leads |
| Control Type | Digital | Digital | Digital | Digital |
| Voltage (volts) | 1000 | 600 | 1000 | 1000 |
| View Product | View Product | View Product | View Product |
Compare Similar Multimeters
| | | | |
| Brand | Klein Tools | Klein Tools | Klein Tools | Klein Tools |
| Name | 1000V Auto-Ranging Digital Multimeter | 400 Amp AC/DC Digital Clamp Meter, Auto-Ranging | 600 Amp AC True RMS Auto-Ranging Digital Clamp Meter with Temp | True RMS Auto-Ranging Digital Multimeter |
| Price | $6997 | $8654 | $9997 | $9997 |
| Ratings | (179) | (50) | (79) | (82) |
| Test Meter Type | ||||
| Display Type | ||||
| Electrical Tools Features | ||||
| Control Type | ||||
| Voltage (volts) | ||||
| View Product | View Product | View Product | View Product |
Key Features
Work Safely
These Clamp Meters all meet CAT III 600V, Class 2, Double Insulation Safety Rating
Clamp Meters for the Work You Do
Klein Tools' Clamp Meters meet requirements for use in basic and controlled electromagnetic environments like residential, office and light-industrial locations
Work Tough
Durable, multi-function meters built to withstand a 2 meter drop
Features You Need
Auto-Range, Hold, Data Hold, and Max value
Auto-Power Off
Meters feature auto-power off after 10 minutes to conserve battery life; low battery indicator and easily accessible battery compartment to keep you going
Multi-function Clamp Meters
Clamp Meters measure AC current and Non-Contact Voltage via the clamp and AC/DC voltage, resistance and continuity via test leads
Meters for the Way You Work
Years of field research, combined with extensive input from electricians across America, inspired the development of meters and electrical testers loaded with time-saving features
CL390 AC/DC Digital Clamp Meter, Auto-Ranging 400 Amp
Automatically ranging true root mean squared (TRMS) digital clamp meter measures AC/DC current, NCVT, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, diodes, and temperature
CL120KIT Clamp Meter Elecrrical Test Kit
Kit with Klein Tools' Cat. No. CL120, the Cat. No. RT210 GFCI Receptacle Tester, and the Cat. No. 69409 Line Splitter 10x
CL120 Digital Clamp Meter, AC Auto-Rnging 400 Amp
Automaticallty ranging digital clamp meter that measures AC current, NCVT, AC/DC voltage, resistance and continuity
CL320 HVAC Digital Clamp Meter, AC Auto-Ranging 400 Amp
Automatically ranging true root mean square (TRMS) digital clamp meter measures AC current, NCVT, AC/DC voltage, DC microamps, resistance, continuity, frequency, capacitance, diodes, and temperature
CL220 AC Auto-Ranging Digital Clamp Meter, 400 Amp w/Temp
Automatically ranging true root mean squared (TRMS) digital clamp meter measures AC current, NCVT, AC/DC voltage, continuity, and temperature
Klein Tools Quality
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
Specifications
Dimensions
Details
Warranty / Certifications
Questions & Answers
Am i right that this meter clamp can only read up to 40 amp ac. I need one just like this but goe...
Asked by PopaBear September 8, 2020It is rated for 400 amps but if you use a line splitter to measure a corded appliance it multiplies the reading 10X and so would max out at 400 amps which would indicate 40 actual amps. But for straight line readings it should read up to 400 amps.
Microamps resolution
Asked by n9wox September 17, 2020The Klein Tools model # CL390 Clamp Meter is designed to measure DC microamps from 0-200µA with a resolution of 0.1µA and accuracy of ±(1.0% + 5 digits).
Does this meter have audible continuity check?
Asked by Lce July 19, 2020Yes, the Klein Tools model # CL390 Clamp Meter features an audible continuity check.
Can the thermocouple be submerged in water and other liquids to measure temperature?
Asked by RG January 2, 2021Yes, the thermocouple can be submerged in liquids to measure temperature.
Does this measure microfarads across a capacitor?
Asked by shawno August 14, 2020Yes, the Klein Tools model # CL390 Clamp Meter measures microfarads.
Does it measure DC amps up to 400 amps
Asked by Jj June 28, 2020Yes, the Klein Tools model # CL390 Clamp Meter measures DC current up to 400 amps.
Will this measure down to 20ma (.02) DC?
Asked by Jeffro August 14, 2020Yes, the model # CL390 Clamp Meter measures DC Microamps up to 200µA with a resolution of 0.1µA.
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