Klein Tools CL390 AC/DC Digital Clamp Meter, Auto-Ranging 400 Amp

• 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

Return Policy
We accept returns on most items within 30 days of purchase. However, the following items are NOT eligible for return:

• Built-to-order or custom-made products (e.g., Rolair Air Compressors)
• Gas-powered equipment (e.g., Generators, Power Washers, Chainsaws)
• Pneumatic tools (e.g., Nail Guns, Paint Sprayers)
• Ladders, scaffolding, or climbing equipment
• Fall protection equipment (e.g., Lanyards, Harnesses)
• Batteries
• Used consumables or accessories (e.g., Sandpaper, Saw Blades)
• Guide rails longer than 95 inches
• Cast iron equipment (e.g., Table Saws, Drum Sanders)
• Clothing (all sales are final)

For more details on eligible items and our full return instructions, please click here to view our complete policy.

We’re dedicated to offering you the best price on high-quality products from trusted sources. If you find the exact same item from an authorized seller at a lower price—including all shipping, handling, taxes, and any additional fees—we’re happy to match it.

To request a price match, simply contact our Customer Support team with the following details:

• Your order number and purchase date
• The product identifier or model number
• A link to the competitor’s advertisement showing the lower price

Once we verify the details, we will issue a credit (if applicable) within two business days.

Terms & Conditions:

• The competitor must be an authorized retail dealer.
• The product must be identical, in stock, and available with the same features and warranty.
• This offer does not apply to auction sites, clearance events, special promotions, misprints, or limited-time offers.
• Price match requests must be made within 30 days of your purchase.
• Refunds will be processed in the original form of payment.
• Certain items, such as heavy equipment, may be excluded.

We stand by our commitment to bring you the best deal possible!