With weekly/daily revolving drum.ink phial and eekly chart for one year range (-) 15 to + 40c . Drum rotation 7 days and 1 day changeable by gear Imported
With weekly/daily revolving drum.ink phial and eekly chart for one year range (-) 15 to + 40c . Drum rotation 7 days and 1 day changeable by gear Imported