Klein Tools Digital Clamp Meter, 400 Amp
Klein Tools

Klein Tools Digital Clamp Meter, 400 Amp

$29.99across 90 retailers
Model: CL390UPC: 92644692871
Lowest price
$74.00 at Amazon
Price seen Jan 2, 2024

Where to Buy

Newest price seen: Jul 28, 2024
RetailerPriceLast seenBuy
A
Abtaudios
$29.99May 8, 2023, may have changedBuy Now
A
acme tools
$29.99Mar 20, 2023, may have changedBuy Now
A
Actools
$29.99Apr 6, 2023, may have changedBuy Now
D
ddanxkwdadza
$29.99Apr 29, 2023, may have changedBuy Now
M
My Store
$29.99Apr 4, 2023, may have changedBuy Now

Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.

Pros

  • •Solid construction and robust build.
  • •Smooth operation with a bright and clear display.
  • •Versatile features and high-quality test leads.
  • •True RMS measurement capability.

Cons

  • •Non-contact voltage sensing is overly sensitive, with a loud beeper.
  • •Display readability issues in bright outdoor settings.
  • •Inconsistent and inaccurate measurements for low DC amps, especially in automotive applications.
  • •Frequent mode switching required back to DC; auto shut-off interrupts workflow.
  • •Thermocouple function produces unreliable readings.

Bottom Line

The Klein CL390 is a promising multimeter with excellent build quality and useful features, but it may fall short in specific applications, especially for accurate low DC amp readings and in outdoor conditions. For those in need of accurate automotive diagnostics, these limitations might be significant.

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