401050 / Extech AC/DC Voltage Detector Contact AC Voltage from 70 to 250 VAC.Non-contact AC Voltage from 70 to 600VAC

382068-NIST / Extech 1000A True RMS AC/DC Clamp-On Power Datalogger Kit 1000A Clamp measures 1f or 3f (phase) power to 600kW.

380947-NIST / Extech True-RMS AC/DC Mini Clamp Meter, 400VAC/DC, 400AAC/DC with NIST Calibration Large 4000 count LCD display with full function indication. Fast 40 segment analog bargraph.

380926-NIST / Extech True RMS Clamp Meter, 2000A AC/DC, includes Traceable Certificate Full function DMM includes AC/DC voltage and current, resistance, capacitance, frequency, duty dycle, diode and continuity

MS2138R Mastech แคลมป์มิเตอร์ Digital AC/DC Clamp Meter วัดกระแสไฟฟ้า DC / AC