Klein Tools CL800 Digital Clam...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$250.90
$150.24
Klein Tools CL800 Digital Clamp Meter, AC Auto-Range TRMS, Low Impedance (LoZ), Auto Off

Klein Tools CL800 Digital Clamp Meter 600A AC/DC Auto-Range TRMS with Low Impedance Mode

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Model: CL800
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$250.90
$150.24
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Klein Tools CL800 Digital Clamp Meter 600A AC/DC Auto-Range TRMS with Low Impedance Mode

Professional Auto-Range TRMS Technology with Low Impedance Detection

The Klein Tools CL800 Digital Clamp Meter delivers professional-grade electrical measurement capabilities with automatically ranging true RMS technology for increased accuracy. This versatile clamp meter features CAT IV 600V and CAT III 1000V safety ratings with Class 2 double insulation, making it suitable for residential, office, and light-industrial applications. The integrated Low Impedance (LoZ) mode identifies and eliminates ghost or stray voltages, while the included thermocouple probe extends temperature measurement capabilities from -14� to 1000�F.

Professional Features & Benefits

  • 600A AC/DC Current Measurement: Handles high-current applications with precision for comprehensive electrical diagnostics and troubleshooting.
  • Auto-Range TRMS Technology: Automatically selects optimal measurement range while providing true RMS accuracy for reliable readings on non-linear loads.
  • Low Impedance (LoZ) Mode: Eliminates ghost voltages and stray readings for confident voltage measurements in complex electrical environments.
  • CAT IV 600V Safety Rating: Meets stringent safety standards for use in primary distribution and utility applications with enhanced protection.
  • 6000 Count LCD Display: Provides clear, high-resolution readings with excellent visibility for precise measurement interpretation.
  • 6.6-Foot Drop Protection: Built to withstand demanding jobsite conditions with rugged construction for long-term reliability.
  • Complete Measurement Kit: Includes carrying pouch, test leads, thermocouple with adapter, and batteries for immediate professional use.

Technical Specifications

  • Batteries: 2 x AAA
  • Capacitance: 6000�F
  • Current: 600A AC; 600A DC
  • Department: Electrical
  • Depth: 9.0900 in
  • Display: 6000 Count LCD
  • Drop Protection: 6.6' (2 m)
  • Frequency: 1Hz - 500 KHz
  • Height: 1.5400 in
  • Ingress Protection: IP40
  • Jaw Size: 1.38" (3.5 cm)
  • Ohms Resistance : 60MO
  • Overall Height: 1.55" (3.9 cm)
  • Overall Length: 9.09" (23.1 cm)
  • Overall Width: 3.81" (9.7 cm)
  • Product Function: Test leads measure AC/DC voltage, resistance, continuity, frequency and capacitance and tests diodes. Thermocouple probe measures temperature.
  • Product Group: Tool Sets
  • Product Subgroup: Tool Kits
  • Product Voltage: 1000V AC; 1000V DC
  • Standard: CAT IV 600V; CE Certified
  • Temperature Range: -14� - 1000�F (-26� - 538�C)
  • Weight: 0.7810 lbs
  • Width: 3.8200 in

Professional Applications

  • Electrical Troubleshooting and Diagnostics
  • HVAC System Maintenance and Repair
  • Industrial Equipment Testing
  • Commercial Facility Maintenance
  • Residential Electrical Service
  • Motor and Drive System Analysis
  • Power Quality Assessment

Why Choose Klein Tools Quality?

Klein Tools delivers professional-grade reliability with CAT IV 600V and CE certification standards, backed by rugged 6.6-foot drop protection and IP40 ingress protection. The comprehensive measurement capabilities, combined with true RMS accuracy and Low Impedance mode, provide the precision and durability that electrical professionals demand for critical diagnostic work.

Manufacturer Resources

Spec Sheet

Product Specs

Batteries:
2 x AAA
Capacitance:
6000µF
Current:
600A AC; 600A DC
Display:
6000 Count LCD
Drop Protection:
6.6' (2 m)
Frequency:
1Hz - 500 KHz
Ingress Protection:
IP40
Jaw Size:
1.38" (3.5 cm)
Ohms Resistance:
60MO
Overall Height:
1.55" (3.9 cm)
Overall Length:
9.09" (23.1 cm)
Overall Width:
3.81" (9.7 cm)
Standards:
CAT IV 600V; CE Certified
Temperature Range:
-14° - 1000°F (-26° - 538°C)
Department:
Electrical
Product Group:
Test & Measurement
Product Subgroup:
Multimeters
Product Voltage:
1000V AC; 1000V DC
Product Height:
1.5400 in
Product Weight:
0.7810 lbs
Product Width:
3.8200 in
Product Depth:
9.0900 in
Product Type:
Clamp Meter

Klein Tools CL800 – Frequently Asked Questions

1) Can the Klein CL800 clamp meter be used on a 480V three-phase panel or service entrance?
The CL800 carries a CAT IV 600V rating and is CE certified, so it covers service entrance and primary distribution work as well as branch circuits. Voltage measurement goes to 1000V AC and 1000V DC through the test leads, so a 480V three-phase panel is well inside range. Current is 600A AC and 600A DC through the clamp.
2) Will the Klein CL800 jaw fit around a 4/0 service conductor or a bundle of feeders?
Jaw opening on the CL800 is 1.38 inches (3.5 cm). That clears a single large service conductor including insulation, but it will not swallow a bundle of feeders or a large conduit. Measure the outside diameter of what you need to clamp and compare it to 1.38 inches before you commit.
3) What is Low Impedance (LoZ) mode on a clamp meter and do I need it?
LoZ puts a low input impedance across the leads so induced or capacitively coupled voltage on an unenergized conductor bleeds off instead of showing as a reading. On the CL800 it's what kills ghost voltage, the phantom 40 or 60 volts you see on a dead switch leg in a conduit run alongside energized wire. If you troubleshoot long parallel runs, multi-conductor pulls, or lighting circuits with dimmers, it saves you chasing a fault that isn't there. Use standard high impedance mode for electronics and control circuits where a low impedance load would drag the circuit down.
4) Does the Klein CL800 measure DC amps, or only AC?
Both. The clamp reads 600A AC and 600A DC. That matters because many mid-priced clamp meters are AC-only, which leaves you stuck on solar DC strings, battery banks, and DC drive circuits. The CL800 covers those.
5) Can I check a motor's inrush and its true RMS current on a VFD with the Klein CL800?
True RMS is exactly what the CL800 is built around, with auto-ranging so you aren't hunting for a range while the load moves. TRMS matters on VFD output, electronic ballasts, LED drivers, and switching supplies, where an averaging meter reads low on the distorted waveform. Frequency measurement spans 1Hz to 500 KHz, so you can also read drive output frequency to confirm what the VFD is actually commanding.
6) Do I need a separate thermometer for HVAC work if I have the Klein CL800?
No. A thermocouple probe with adapter comes in the kit and reads -14 to 1000 degrees F (-26 to 538 C). That range covers supply and return air, refrigerant line temperature, and hot surfaces like heat exchangers and motor housings, so an HVAC tech can do a temperature split and a current draw with one instrument.
7) What comes in the box with the Klein CL800, and do I need to buy anything to start using it?
Nothing else is required. The CL800 ships with test leads, the thermocouple and its adapter, a carrying pouch, and batteries. It runs on 2 x AAA cells, so replacements are ordinary and cheap when they die.
8) Can the Klein CL800 test capacitors on an AC condenser unit?
Capacitance measurement runs to 6000 microfarads, which covers run capacitors and start capacitors on residential and light commercial condensers with room to spare. The meter also does resistance to 60 megohms, continuity, and diode test, so you can check a compressor winding and a control board diode with the same tool.
9) Will the Klein CL800 survive being dropped off a ladder or used outdoors in the rain?
Drop protection is rated to 6.6 feet (2 m), so a fall from a step ladder or off a panel ledge is within spec. Ingress protection is IP40, which means it resists solid objects over 1 mm but carries no water rating. Keep it dry, and do not count on it in a downpour or a wet trench.
10) Is a clamp meter or a standard multimeter the right tool for panel troubleshooting?
A clamp meter like the CL800 reads current without breaking the circuit, which is the whole point in a live panel: you drop the jaw over the conductor and get 600A AC or DC with nothing disconnected. It also does everything a general purpose multimeter does through the leads, voltage to 1000V, resistance, continuity, frequency, capacitance, and diode test. A standalone multimeter only reads current in series, so you'd have to open the circuit. If you spend time in panels, on motors, or chasing load imbalance, the clamp is the one to carry.
11) What is the exact model number to order the Klein 600A TRMS clamp meter?
Order Klein Tools CL800. That is the 600A AC/DC auto-ranging TRMS clamp meter with LoZ mode and the thermocouple kit. Klein's clamp meter line spans several models at different current capacities and feature levels, so the CL800 designation is what separates this one from the rest.
How fast can I get the Klein Tools CL800 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools CL800 come with a warranty?
Absolutely. The Klein Tools CL800 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools CL800?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools CL800 from ZenSupply?
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