PHOTOVOLT CORPORATION

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PHOTOVOLT

Electronic

pH METERS

A complete line of pH meters incorporating modern electronic tubes and circuits, simple in operation and maintenance, featuring sealed amplifier plug-in units. Line-Operated Model 85 • Single range 0-14, scale lenglh 3'', r e a d a b l e to 0.1 pH unit. • ΓυΙΙν stabilized, simple, compact, available wi*h carrying cose. • A f u l l fledged pH meter usable with all typns of clpctrodes.

Write for Bulletin Î 1 9 5

$115.

L i n e - O p e r a t e d M o d e l 115 • Single range 0-14, scale length 4 " , r e a d a b l e to 0.05 pH unit • Temperature control 20-60' , C. a v a i l a b l e with carrying case. " A d d i t i o n a l millivolt scale for rtjdox rm:asurem„n»s a n d titrations.

Write for Bulletin L·225 L i n e - O p e r a t e d M o d e l 110 MODEL 85

MODEL 110

$145.—

• Single range 0-14, scale length 7 " , r e a d a b l e to 0.02 pH unit. • Temperature control 0 1 0 0 ' C . voltage selector for 80-260 volt? • A v a i l a b l e w i t h c a r r y i n g cover & baseboard f o r h o t t l r s , beakers.

Write for Bulletin # 1 0 5

$215.

B a t t e r y - O p e r a t e d M o d e l 125 • Single range 0-14, scale length 5 VI", r e a d a b l e Ό 0.03 pH unit • O n l y 3 batteries, standard r a d i o t y p e , 2,000 hours of service • A v a i l a b l e w i t h c a r r y i n g f r a m e for instrument, beakers, bottles

Write for Bulletin # 1 1 8

$175.

MODEL 125

All prices include set of glass electrode and colon-el «l