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Klein Tools

Klein Tools CL810

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Klein Tools CL810

Current:
600A AC/DC via the clamp
Voltage:
1000V AC / 1000V DC via test leads
Resistance:
600Ω to 60MΩ, ±(1.2% + 5 digits) / ±(2.0% + 10 digits)

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Package details

Model: CL810

Condition:
Confirm new or reconditioned on the listing
Quantity:
Confirm package quantity on the listing
Included essentials:
Clamp meter, right-angle test leads, thermocouple, storage pouch, manual, batteries

Important limit: 600A clamp tops out below the 1000A+ class; DC current accuracy is ±(2.0% + 8 digits) at 60A

Confirm condition, quantity and included accessories on the retailer’s listing.

Specifications checked November 5, 2026. Full product details

Size and package

Size and placement

Size
9.06 x 3.47 x 1.65 in (23 x 8.8 x 4.2 cm)
Weight
13 oz (369 g) including batteries

In the box

Clamp meter, right-angle test leads, thermocouple, storage pouch, manual, batteries

Manufacturer specifications

Klein Tools CL810 600A AC/DC Auto-Ranging TRMS Clamp Meter with Work Light

A 600A AC/DC auto-ranging true-RMS clamp meter with LoZ mode, inrush current, DC microamps, temperature via thermocouple, non-contact voltage detection and a built-in work light.

Why people pick it

  • True RMS and 600A AC/DC clamp with CAT IV 600V / CAT III 1000V rating, per Klein's spec
  • Measures inrush current and DC microamps, which cheaper Klein clamps leave out
  • LoZ mode plus a built-in non-contact voltage tester covers ghost-voltage and quick safety checks
  • Transflective display, lighted dial and work light for dim panels; 2 m drop rating and IP40

Know before you buy

  • 600A clamp tops out below the 1000A+ class; DC current accuracy is ±(2.0% + 8 digits) at 60A
  • No backlight-free display alternative; battery count (3 x AAA) is higher than pen-style testers
  • Klein gives no single headline accuracy on the product page; it defers to the manual's per-range tables

Full specifications

Current600A AC/DC via the clamp; inrush to 600A (detection range >6A, ±(10.0% + 10 digits))
Voltage1000V AC / 1000V DC via test leads
Resistance600Ω to 60MΩ, ±(1.2% + 5 digits) / ±(2.0% + 10 digits)
Capacitance60nF to 6mF (page lists 6000µF)
Frequency2 Hz to 60 kHz, ±(0.1% + 5 digits)
Temperature-40°F to 1832°F (-40°C to 1000°C) via thermocouple, ±(1.2% + 7°F) to ±(1.3% + 3°C)
DC microamps200µA range, ±(1.0% + 5 digits)
Low impedance (LoZ)Input impedance >3kΩ, up to 1000V AC/DC RMS, to eliminate ghost voltages
Non-contact voltageBuilt-in NCV with escalating audio-visual alert
Display3-5/6 digit, 6000-count transflective reverse-contrast LCD with lighted dial
Jaw size1.4 in (3.6 cm)
Drop protection6.6 ft (2 m)
Ingress protectionIP40
Auto power offAfter about 15 minutes of inactivity
Batteries3 x AAA (included)
Safety ratingCAT IV 600V, CAT III 1000V, Class 2, Double Insulation, CE, UKCA
IncludedClamp meter, right-angle test leads, thermocouple, storage pouch, manual, batteries
Weight13 oz (369 g) including batteries
Size9.06 x 3.47 x 1.65 in (23 x 8.8 x 4.2 cm)

From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.

Alternatives to consider

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Fluke 325

Max voltage
600 V
Safety rating
CAT III 600 V, CAT IV 300 V
Specifications & conditions
Max current
400 A

A true-RMS 400 A clamp meter for commercial and residential troubleshooting, with AC/DC current and voltage, resistance, capacitance, frequency and temperature.

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Hioki CM4373-50 AC/DC Clamp Meter (2000 A)

Hioki CM4373-50

Max voltage
1,000 V
Display counts
6,000 counts
Specifications & conditions
Safety rating
CAT IV 600 V, CAT III 1000 V
Max current
2,000 A

A True RMS 2000 A AC/DC clamp meter with IP54 storage protection and a wide range of DMM functions, aimed at EV, solar and heavy-equipment maintenance work.

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