• True RMS:  True RMS
• Display counts:  4000 count LCD
• Jaw size/Cable size:  0.9" (23mm); 4/0 AWG
• AC Current:  4A, 40A, 100A, 400A
• DC Current:  40A, 400A
• Max Resolution:  AC: 0.001A, DC: 0.01A
• Basic ACA Accuracy (% rdg):  AC: ±1.5%, DC: ±1.0%
• Frequency (Max Res.):  10kHz (0.01Hz)

True RMS mini-clamp with high current resolution

The compact Extech 380947 is a 400 Amp True RMS mini clamp meter. This meter has a small diameter jaw designed to reach in small areas while providing 1mA resolution and very low-current sensitivity. This mini clamp meter is useful for current and frequency related troubleshooting in plant maintenance, electrical, HVAC, and telecom work, as well as home electrical, fleet maintenance, marine, and motorcycle repairs. Comes with battery and manual.