AEMC Instruments' MTX 3290 and 3291 Multimeters
AEMC Instruments’ MTX 3290 and MTX 3291 multimeters have a 2.75-by-2.04-in. backlit LCD screen with an onscreen connection indicator, auto-ranging current up to 10A and SX-DMM software for real-time data processing on a PC. It provides secondary measurements in addition to the main measurement for analysis and min/max and average data with relative time/date-stamping and voltage and current peaks. It is powered by four AA batteries; four NiMH rechargeable batteries are available with an optional external charging module.