In addition to ac/dc V/I measurements and a basic dc accuracy of 0.015%, the SDM3055 and SDM3055A 5.5-digit digital multimeters offer capacitance, continuity, and diode testing, as well as frequency (20 Hz to 1 MHz), period, and temperature functions. Prices start at under $500.
The meters have full-color dual displays and built-in math, statistics, histograms, and pass/fail functions, as well as trending / bar charts. Cold junction compensation for thermocouple temperature measurements is also built in. Priced at $449, the SDM3055 provides LAN and USB device / host interfaces; the $619 SDM3055A provides those interfaces as well as GPIB. Warranty is three years on parts and labor, and the instruments come with a 30-day money back guarantee.
Siglent Technologies America, Inc. , www.siglent.com/ens
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