How high of voltage will it test ?

The included paperwork says 600 Volt. That’s kind of an industrywide cut off point between “normal“ power versus what is generally considered to be high voltage. I would feel comfortable using it to test 480 V all day long. I would not use it over 600 V under any circumstances.

Does it measure volts in millivolts in DC? How many digits does it show after the decimal?

Yes. 3 decimal points after whole volts. I.e.; 1.419 volts for a AA battery

Is a case furnished with the meter?

My CL-120 cane with a fabric zip case

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Klein Tools Digital Clamp Meter, Auto-Ranging 400 Amp AC/DC and Non-Contact Voltage Tester Measurements, CL120, Orange

Product ID: 290703880

Details

Brand
KLEIN TOOLS
Colour
Orange
Item weight
0.61 Pounds
Power source
Hand_powered
Style
Clamp Meter

💡Integrated non-contact voltage tester

📱Backlit LCD for low-light clarity

🔋Auto-ranging 400 Amp AC/DC clamp

Description

⚡ Empower your craft with Klein’s pro-grade clamp meter — never miss a beat on the job!

ALL IN ONE TESTING - Combines clamp meter and non-contact voltage tester for versatile electrical diagnostics.
SAFETY FIRST ALWAYS - Double insulation and CE certification ensure professional-grade protection.
HANDS FREE EFFICIENCY - Optional magnetic hanger and side test lead holder keep your workflow seamless.
PRECISION MEETS POWER - Auto-ranging clamp measures up to 400 Amps AC/DC with unmatched accuracy.
SEE CLEARLY WORK CONFIDENTLY - Backlit LCD display guarantees easy readings even in dim environments.

The Klein Tools CL120 Digital Clamp Meter is a rugged, auto-ranging device designed for professional electricians. It measures AC/DC current up to 400 Amps, voltage, resistance, and continuity, featuring an integrated non-contact voltage tester and a backlit LCD for easy reading in any lighting. Built with durable materials and safety certifications, it offers hands-free operation options and is trusted by pros since 1857.

Specifications

ASIN	B08CP6GL49
ASIN	B08CP6GL49
Batteries	3 AAA batteries required. (included)
Best Sellers Rank	#7,703 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Voltage Testers
Brand Name	KLEIN TOOLS
Color	Orange
Compatible Devices	Test Leads
Customer Reviews	4.8 4.8 out of 5 stars (1,300)
Customer reviews	4.8 4.8 out of 5 stars (1,300)
Date First Available	27 July 2020
Department	Unisex Adult
Global Trade Identification Number	00092644692833
Included Components	Digital Clamp Meter, AC Auto-Ranging 400 Amp
Is Discontinued By Manufacturer	No
Item Dimensions	21.5 x 8.9 x 3.8 centimeters
Item Length	8.45 Inches
Item Type Name	Clamp Meters
Item Weight	0.61 Pounds
Item Width	3.5 Inches
Item model number	CL120
Manufacturer	KLEIN TOOLS
Manufacturer	KLEIN TOOLS
Maximum Operating Voltage	600 Volts
Measurement Type	Ammeter, Voltmeter, Ohmmeter
Minimum Operating Voltage	9 Volts
Model	CL120
Number of Items	1
Part Number	CL120
Power Source	Hand_powered
Product Dimensions	21.46 x 8.92 x 3.84 cm; 276.69 g
Specification Met	Double Insulation Safety Rating, Ce Certified
Style Name	Clamp Meter
UPC	092644692833
Unit Count	1 Count
Upper Temperature Rating	1000 Degrees Celsius

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