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Klein Tools CL800 is an automatically ranging true root mean squared (TRMS) digital clamp meter that measures AC/DC voltage, resistance, continuity, frequency, capacitance, and tests diodes via test-leads, and temperature via a thermocouple probe. It also features a Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages. Klein Tools’ Test and Measurement product line was exclusively designed from the ground up by electricians for electricians.


  • Clamp Meter with automatically ranging true mean squared (TRMS) technology for increased accuracy
  • Test leads measure AC/DC voltage, resistance, continuity, frequency, and capacitance and tests diodes
  • Thermocouple probe measures temperature
  • Low Impedance (LoZ) mode for identifying and eliminating ghost or stray voltages
  • CAT IV 600V, CAT III 1000V, Class 2, Double insulation safety rating
  • Built to withstand a 6.6′ (2m) drop
  • Low battery indicator and easily accessible battery compartment
  • Operating altitude to 6562-Foot (2000m)
  • Meets requirements for use in basic and controlled electromagnetic environments like residential, office, and light-industrial locations


  • Brand: Klein Tools
  • Dimensions: 1.50 x 9.10 x 3.80 inches
  • Weight: 1.41 lbs
  • Style: AC/DC Current/Low Z, Temp, Cap, Freq
  • Batteries: 2 AAA batteries required. (included)
  • Operating Temp: 32°F to 104°F (0°C to 40°C)

Safety Information
Do not attempt to measure resistance or continuity on live circuits. Read, understand and follow all instructions, cautions, and warnings attached to and /or packed with all test and measurement devices before each use. Before each use verify meter operation by measuring a known voltage or current. Do not use the meter during electrical storms or in wet weather, and do not use the meter or test leads if they appear to be damaged.

Weight 1 lbs