Protek 6500 Digital Multimeter, 50,000 count and 50 segment bar graph backlit display, basic DC accuracy is ±0.03%, RS232 interface with software and cable, AC and (AC+DC) TRUE RMS measurement.(6500 Protek6500 Protek-6500 Protek 6500)
Professional Protek Automotive Multimeter Meter D-988 & pu-988 inductive pick up | eBay