The ETher NDE SigmaCheck-2 Eddy Current Tester, KISIG001B, is an upgrade of the original SigmaCheck-2, KISIG001A. The new model includes an updated probe map design, upgraded PCB Board, increased battery life with new built-in lithium ion battery, and an improved setup calibration block design. It is designed to provide fast and accurate conductivity measurements with automatic temperature compensation and resistance to "edge effect". The high resolution LCD display provides up to three decimal places precision, and an adjustable LED backlight.

The tester includes an ergonomic design with high impact, splash-proof, molded UL94-5VA flame-retardant ABS case, adaptable to rough environments. The battery lasts for over 12 hours, the firmware is field-upgradeable, and probes may be exchanged in the field via SD card. Data may be stored and uploaded to a PC for record keeping and report generating. The real-time clock grants the ability to time and date stamp readings, making it easier to sort and organize measurements in Microsoft Excel.

Conductivity measurement ranges from 0.5 to 110% IACS (0.28 to 64 MS/m) with accuracy ±0.05 IACS for 0-20% IACS at 20°C and ±0.25% of reading above 20% IACS. Operating frequencies are 60, 120, 240, and 480 kHz, with 960 kHz optional. Applications include material verification, heat treatment verification, heat/fire/lightning damage investigation, material aging assessment, measuring phosphor content of Cu alloys, monitoring deposition processes, aircraft structure paint thickness measurement, and more.