EEVblog 121GW Multimeter

A unique, feature packed Multimeter which has been developed for electronics designers. This multimeter represents two years of collaboration between EEVblog and UEI. Designed for electronics use, with unique features such as: Bluetooth connectivity (multi-device capability) Open Source Cross Platform application software (Android + Windows) 15V Diode Test Voltage (useful for Zeners + LED strings etc) VA Power measurement Low Burden voltage Unique burden voltage display Micro SD Card data logging + firmware updating Other major features include: Dual 50,000 count display with bargraph 0.05% + 5 Basic DCV Accuracy Auto-Hold measurement 600V CAT-III with independent UL 61010 certification by ETL Safe operation through HRC fuse + TVS + PTC + MOV + Diode Bridge protection Hardware Features: AD8436 >100KHz True RMS 4 x AA battery powered with 500+ hr battery life Compact design - 84 × 165 × 59 mm (W × L × H) Hackable ST ARM Cortex M3 processor (S-LINK/V2 programmer interface inside) Hycon HY3131 chipset MAX4238 Low Offset Amplifier for current ranges SD Card firmware update Full Open Schematic available 8ppm ADR3412 voltage reference The meter is manufactured by UEI Test Instruments, a reputable US based designer and manufacturer of high quality test gear. The design work was primarily done by UEI, but with a great deal of design input and direction from Dave from the EEVblog. The meter is manufactured in South Korea. NOTE: The meter may come with either Brymen (gold) probes or UEI (nickel) probes depending upon availability at the time. Both are high quality silicone rubber probes. NOTE: The meter does not come with a printed manual, it can be downloaded from www.eevblog.com/121GW The latest firmware can also be downloaded from the website.