EXTECH CA3018-NIST, 3000A AC 18in Flex Clamp-on Adaptor with NIST


Price $312.99
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Extech Test & Measurement

18" Flexible Clamp Adaptor for Multimeters/Clamp-On Meters - with NIST

The CA3018 is a 3000A AC flex clamp-on adaptor for multimeters and clamp on meters with standard sized banana plugs. The CA3018 is an 18 inch flexible clamp capable of measuring AC Currents up to 3000A. Complete with built-in flex clamp cable, 6.6ft (2m) lead with banana plugs and two AAA batteries. UL listed with a CAT IV 600V safety rating.


  • Measure AC Current up to 3000A
  • Flexible 18" (45.7cm) clamp jaw easily wraps around bus bars and cable bundles
  • 7.5mm cable diameter fits into tight spaces and around large conductors
  • Measures AC Current in three ranges
  • Easy twist clamp cable closure to Lock or Open
  • Compatible with most multimeters and clamp meters with standard sized banana plug inputs
  • Complete with built-in flex clamp cable, 6.6ft (2m) lead with banana plugs, and two AAA batteries


  • Jaw size/Cable size: 10" (25.4cm) | 18" (45.7cm)
  • AC Current: 30.00A (100mV per Amp output); 300.0A (10mV per Amp output); 3000A (1mV per Amp output)
  • Max resolution: 0.01A
  • Basic ACA Accuracy (% rdg): ±3%FS (45 to 500Hz)
  • Dimensions/ Weight: 13.8x5.1x1" (350x130x25mm)/ 7.1oz (200g)