Klein Tools CL445 vs UNI-T UT204R

Last updated: November 9, 2026

The Klein Tools CL445 rates 3.7 among AC only clamp meters; the UNI-T UT204R rates 3.3 among AC/DC ones. The UNI-T UT204R costs $18.36 less ($76.49 vs $94.85).

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Klein Tools CL445 vs UNI-T UT204R

Scores side by side

These two sit in different type classes (AC only and AC/DC), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.

Factor weightKlein Tools CL445UNI-T UT204R
Overall rating3.7/53.3/5
Current range 15%60 600 A through the jaw60 600 A through the jaw
DC current 15%25 DC microamps (600 uA) through the test leads only100 DC current to 600 A through the jaw
Safety rating 20%100 CAT IV 600 V / CAT III 750 V25 CAT III 300 V / CAT II 600 V
Features 15%65 true RMS, inrush, non-contact voltage, temperature, DC microamps45 true RMS, non-contact voltage, temperature
Accuracy 10%67 2% of reading50 current accuracy not published (neutral score used)
Jaw opening 5%40 32 mm jaw27 28 mm jaw
Warranty 10%50 2-year warranty0 warranty not published, scored as none
Price 10%72 $94.8582 $76.49

Specifications

Klein Tools CL445UNI-T UT204R
Measurement
AC current (jaw)600 A600 A
DC current (jaw)No600 A
DC microamps (leads)600 uA-
Voltage750 V600 V
Current accuracy2% of reading-
Jaw opening32 mm28 mm
Safety
CAT ratingCAT IV 600 V / CAT III 750 VCAT III 300 V / CAT II 600 V
Features
True RMSYesYes
InrushYesNo
LoZ modeNoNo
Non-contact voltageYesYes
Low-pass filterNoNo
TemperatureYesYes
Phone appNoNo
Build
Weight357 g235 g
Warranty2 years-

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