I picked one up for very cheap years ago intending to have a back-up for my Pentax. I've actually found it to be just as accurate as the Pentax and it uses much more available batteries.
The build quality's not in the same league, but it's a very good meter that punches well above its weight.
This little thing is called 'Tages- und Kunstlicht Belichtungstabelle' (= daylight and artificial light exposure table).
Mine came from AGFA but there were several other manufacturer.
Search engine Printable exposure calculator or ebay search exposure calculator. The circular ones are becoming rare but the sliding scale one is still at the top of the printable list.
I picked one up for very cheap years ago intending to have a back-up for my Pentax. I've actually found it to be just as accurate as the Pentax and it uses much more available batteries.
The build quality's not in the same league, but it's a very good meter that punches well above its weight.
I own a couple of digital Soligor spot meters. I found both at different antique shops. One was $30, and a Zone VI conversion came in at $65. I own a Pentax digital Zone VI conversion, and the Soligors both read within 1/3 EV of the Pentax.
I now sure who made the Soigor spot meters, I have one and occasionally use when I'm a zone frame of mind, has always be accurate.
By now OP has seen a lot of great options, but last option for street shooting, memorize sunny 16 and shoot trail and error until you learn to read the light.
For fun, I'd like to suggest THIS as the ultimate lightweight, easy to use, no batteries, dirt cheap "exposure meter." From Fred Parker. http://www.fredparker.com/ultexp1.htm
For about a year I carried this in the form of a two-sided laminated card. It served me perfectly. I also have a Luna Pro analog 9V meter - because, well, why not. But, for 90% of the applications where I am shooting, the paper chart works every bit as accurately. Enjoy.