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  • 400 A AC range
  • Max. jaw opening: 25.4 mm
  • 4000 count display w/bargraph
  • Autoranging
  • Data Hold
  • Auto-off
  • 3-3/4 digit LCD
  • Overrange indication
  • CAT III 600 V safety rating

The Amprobe AD40B is a low-cost, miniature digital ammeter that measures AC current to 400 A with 10 mA resolution. Suitable for a wide range of applications, the AD40B features jaws which open to more than 25 mm and a CAT III – 600 V safety rating.

The Amprobe AD40B digital ammeter has a 4000-count display with bargraph. Other features include autoranging, data hold and auto-off.

Amprobe AD40B digital ammeters ship complete with:

  • Carrying case
  • Manual

Amprobe AC40B Clamp Type Digital Multimeter Specifications

Function Range Accuracy
AC Voltage
  40 A, 400 A ±(2% rdg + 10 dgt)
Resolution 0.1 A in 40 A range  
Overload Protection 660 A for AC current