Two meters I can recommend: the Gossen Lunalite. Easy to use, solid state so no meter needles to be thrown off their pivots with a knock (just 3 LEDs). 9v battery, easy to find and small enough to pack a spare. Also Gossen Multisix. LCD readout, a little more intricate to use but basic instructions are pasted on the back. Same battery as Lunalite. I used Lunalite for more than 20 years and never a problem and still have my two. Had the Multisix last year and using it regularly with a pair of Leica M4-P as the switch has broken on the Leicameter MR4.