SKU: 12625823380

Klein Tools Clamp Meter CL320 400A AC Auto Ranging Multimeter (True RMS 600V DC Microamps Temperature Capacitance NCVT HVAC Circuit Diagnostic Tool)

Sale price$89.98 Regular price$99.98
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Description

Klein Tools Clamp Meter CL320 400A AC Auto Ranging Multimeter (True RMS 600V DC Microamps Temperature Capacitance NCVT HVAC Circuit Diagnostic Tool)Verify Flame Sensor Continuity And Audit Variable Climate Motors Instantly With Backlit Double Insulated Induction Tracking Loops The Klein Tools CL320 is an automatically ranging True RMS digital clamp multimeter engineered for the direct measurement of electrical current up to 400A AC and potential up to 600V AC DC. This HVAC specialized tester incorporates a 200A DC microamps circuit to evaluate structural furnace flame sensors alongside an

Verify Flame Sensor Continuity And Audit Variable Climate Motors Instantly With Backlit Double Insulated Induction Tracking Loops

The Klein Tools CL320 is an automatically ranging True RMS digital clamp multimeter engineered for the direct measurement of electrical current up to 400A AC and potential up to 600V AC/DC. This HVAC specialized tester incorporates a 200µA DC microamps circuit to evaluate structural furnace flame sensors alongside an integrated K-Type thermocouple port to execute ambient thermal profiling. Operating within a certified CAT III 600V safety envelope, the device employs a 1.6-inch jaw sensor and a high-contrast 4000-count backlit LCD screen to safely capture electrical parameters inside unlit mechanical rooms.

Best Used For:

  • Flame Sensor Testing: Connecting specialized test leads to capture tiny 200µA DC microamp currents to verify heating system ionization safety.
  • Climate Handler Maintenance: Clamping the 1.6-inch induction jaw over blower motor lines to track running alternate current draws under load.
  • Thermal Loop Balancing: Interfacing the included K-Type thermocouple line to measure ductwork and mechanical system profiles up to 1832°F.

Key Performance & Safety Features

  • True RMS Auto-Ranging: Auto-selecting TRMS metric processing filters out background harmonic noise to maintain data accuracy on non-linear loads.
  • Proximity Safety Tester: Non-contact voltage sensor embedded in the clamp jaw performs rapid line verification scans before test lead placement.
  • Illuminated Digital Display: High-visibility 4000-count backlit LCD screen presents clean character sets inside dim crawlspaces and utility vaults.
  • Comprehensive Testing Array: Multi-mode selection tracks loop resistance to 40MΩ, capacitance to 4000µF, frequency sweeps, and diode health.
  • Rugged Impact Defense: Hardened double-insulated Class 2 chassis matrix withstands raw jobsite concrete floor drop impacts from up to 6.6 feet.

What's Included

  • CL320 HVAC TRMS Digital Clamp Meter
  • Set of Test Leads with CAT III/CAT IV Safety Caps
  • K-Type Thermocouple Probe
  • Professional Padded Carrying Case
  • Three AAA Alkaline Batteries
  • User Instruction Manual

Technical Specifications

Maximum Alternating Current: 400A AC
Maximum Monitored Voltage: 600V AC / 600V DC
Thermal Monitored Scale: -40° to 1832°F
Low-Current DC Step Bounds: 200 µA DC
Maximum Internal Resistance: 40 MΩ
Maximum Capacitance Scope: 4000 µF
Monitored Frequency Scale: 10 Hz - 60 kHz
Clamp Jaw Opening Span: 1.6 Inches
Chassis Drop Protection: 6.6 Feet
Industrial Safety Certification: CAT III 600V, Class 2, Double Insulation
Tester Chassis Dimensions: 8.45" L x 3.5" W x 1.5" H
Net Operating Weight: 1.32 lbs.
Pro-Tip: When diagnosing complex multi-stage heating setups, insert the right side test lead directly into the integrated back-mounted probe track; this locks the multimeter point stable to grant clear one-handed terminal board probing.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12625823380

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Reviewed in the United States on May 18, 2026
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Color: 02-multicolour (4-pack), Size: XX-Large
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Reviewed in the United States on July 28, 2025
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Port Orchard, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026
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Brittany
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Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
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Janessa L.
Phoenix, US
★★★★★ 5
I want to live in these
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