• 1000V CAT IV Rated
  • UL 94 flame retardant self-extinguishing
  • Agency approvals by UL, CSA, VDE, GS (TUV) (pending)
  • IP54 Rated
  • 10,000 count blue electroluminescent backlit display
  • Measures up to 1000Vac (1400V peak), 1000Vdc and AC+DC with resolution to 10mV
  • Measures up to 1000Aac and 1500Adc
  • Measures single- and three- phase power (Real, Reactive and Apparent) up to 3MW with resolution to 1W
  • Measures Voltage Frequency at 20kHz, Current Frequency 2kHz
  • Auto selects AC or DC measurement



The AEMC CL407 Clamp-On Power Data Logger provides a new standard for safety and measurement capability not available in any other clamp meter sold today. Safety Rated at 1000V CAT IV, it is safe to operate in all electrical environments. It is rugged enough for the most demanding work environments and will withstand both dust and water spray with its IP54 rating. Ergonomically designed and easily used by one hand, including function selection and button pushing even with a glove on.

In addition to the standard measurement of volts, amps, frequency, resistance, diode checking and continuity, the Model 407 offers several unequaled functions including: AC, DC and AC+DC volts, amps and power, True InRush™, Power measurements, Harmonic analysis, Data logging and more.


CL407 Specifications
Current AC(ms) 1000A
Current DC 1500A
Current AC+DC 1500A Peak
Voltage AC (rms) 1000V
Voltage DC 1000V
Voltage AC+DC 1000V
Ohms 100k Ohms
Continuity (Buzzer) Yes (< 40 Ohms)
Diode Test
Total Harmonic Distortion Yes
Individual Harmonics (to 25th) Yes
Single- and 3-Phase
Real Power (AC, DC, AC/DC)*
Single- and 3-Phase
Reactive Power (AC, DC, AC/DC)*
Single- and 3-Phase
Apparent Power (AC, DC, AC/DC)*
Temperature (int., ext., C°, F°)
Voltage Frequency (Hz) 20kHz
Current Frequency (Hz) 2kHz
Power Function Yes
THD-r/THD-f Yes
Adapter (AC/DC)
Phase Rotation
Auto AC/DC Yes (V & A)
Auto Power OFF Yes
Hold Button Yes
Backlight Button Yes
Min/Max Button Yes
True InRush™ Function Yes
Relative Function
Peak ± Function Yes
Harmonics Function Yes
Rec (Record) Function Yes
Wireless BT (Bluetooth) Function Yes
Record (Recordings) 1000
Hz Button Yes
Jaw Opening Size (diameter) 1.89″
Protection Index Housing: IP54 (per standard IEC-60529)/Jaws: IP40