This is a vintage AVO Model 8 universal analog multimeter. It measures direct (DC) and alternating (AC) voltage, current, and resistance. Renowned for reliability and robustness, it features a mechanically operated cut-out linked to the meter movement for protection. Production of the iconic Model 8 meter ceased in 2008, after more than 85 years of continuous production. unsure if this is in working order or not, it all looks in good condition
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