PHOTOVOLT CORP.pubs.acs.org/doi/pdf/10.1021/ac60106a715A complete line of pH meters incorporating modern electronic tube...
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PHOTOVOLT
Electronic
p H METERS
A complete Une of pH meiers incorporating modem electronic tubes and circuits, simple in operation and maintenance, featuring sealed amplifier plug-in units. Line-Operated Model 115 * * •
Single range 0-14, scale length 4 " , accuracy 0.05 pH unit. Fully stabilized for wide range of line voltage fluctuations. Unprecedented in compactness and law price of only
Write f o r Bulletin #225
-
$115.
M O D E L 125
Line-Operated Model 110 • •
Single range 0-14, scale length 7", accuracy 0.02 pH unit. Available also with shielded compartment, with baso board and carrying hood, with bottles and beakers, additional price $60.—.
Write f o r Bulletin r/105
$185.—
Battery-Operated Model 125 Single range 0-14, scale length SVi", accuracy 0.03 pH unit. Only 3 batteries, standard radio typo, 2,000 hours of service. Carrying frame for instrument, beakers, and bottles, price S20.—. Stabilised power supply unit available for alternative operation from 110 volt AC line, price $48.—.
M O D E L 115
$145—
Write for Bulletin i l l 8
Battery-Operated Model 125-B for Blood p H • •
Scale length 24!i", expanded five-fold for blood pH tests. Accuracy 0.01 in pH 6-8 range, 0.05 in pH 2-12 range.
Write for Bulletin Î122
M O D E L 125-B
$165.—
Prices include PHOTOVOLT glass electrode and calomel electrode. Electrodes of other makes usable, adapters available.
MODEL 110
Ρ
HOTOVOLT C O R P O R A T I O N • I %»# I V » # W \ e # LU I OC M A D I S O N A V E N U E
Υ Ι16, Α Ν 95 MADISON AVENUE, Ν Ν. Υ. Ν. Υ Y.
For further information, circle number 1 5 A - 1 on Readers' Service Card, page 61 A
PHOTOVOLT Densitometer
pr:
LUMETRON
for Partition Chromatography and Paper Electrophoresis
Photoelectric COLORIMETER and * FLUORESCENCE METER Mod. 402-EF
A high precision instrument- of unusual flexibility for a l l tests involving . . .
A photoelectric precision instrument for the rapid and convenient evaluation of strips and sheets of filter paper in partition chromatography and paper electrophoresis.
Write for Bulletin -800 to
P H O T O V O L T CORP. 95 Madison Avenue Also Colorimeters Fluorimetcrs Nephelometers
N e w York 16, Ν . Υ.
I 1 pH meters I Reflection Meters j Glossmeters
Electronic Photometer» Multiplier Photometer» Interference Filters
Circle No. 15 Δ-2 on Readers' Service Card, page 61 A
VOLUME
2 7 , N O . 10, O C T O B E R
1955
TRANSMISSION FLUORESCENCE NEPHELOMETRY Write
for
Literature
Prompt
Delivery
PHOTOVOLT CORPORATION 95 Madison A v e .
N e w Y o r k 1 6 , Ν . Υ.
Alto Colorimeter! Reflection Meter» Densitometer»
Circle
pH Meters Electronic Photometers Multiplier Photometers
No. 15 A-3 on Readers' Service
Card,
page 61 A
ISA