Micronta LCD Digital Autoranging Pocket Multimeter 22-171 Radio Shack Vintage | eBay
RadioShack 15-Range Digital Multimeter - - Amazon.com
Micronta Digital Multimeter. LCD readout, original case! Tandy, Radio Shack | Multimeter, Digital, Radio shack
Micronta 22-194 Digital Multimeter | eBay
Radio Shack DMM with RS-232
Regardless of the brand shown in picture, what makes the physical constitution of these type of batteries so long lasting? - Electrical Engineering Stack Exchange