Mine takes a readily available 6V 544 battery, which is equivalent to 4 stacked SR44, MS76, or 357 batteries.
I find the meter to be very resistant to flare, reading only the 1 degree spot, and like it a lot. It reads in tenths of stops, and works well as a makeshift densitometer on a lightbox.
It also has built in shadow and highlight placement adjustments, two memories, and an averaging function for two readings.
I've had mine for 25 years and find it very reliable and useful.
Lee