Download - ARTHUR S. & COMPANY
V O L U M E 2 0 , N O . 5, M A Y 1 9 4 8 35 A
MOTOR OPERATED ASPIRATING PSYCHROMETER
Equipped with New, Easy Reading
LANCO Yellow Back
Thermometers
This instrument is of-
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Readings in One Minute
Matchless Accuracy
Simplicity of Operation
Easy Reading
Handy Portability
Quality Craftsmanship
REALLY ACCURATE
HUMIDITY READINGS
No. AC-20692 T y p e M.P . — 110 Vol ts , 60 Cycles
d V o p p t ' ^ e ^ l e t n d " ™£ f c F S c S S S S relSFve Wud i tv^Dimens ions -^^ !d th 6vT£ch? S Depft4M inches!· H e i g M l o " inches W e i g h t ^
No. AC-20694 T y p e M.B.P . — Battery Equipped
Complete with extra wicks and charts Dimensions —Width 6 ^ inches, Depth Height 11 inches. Weight 9 pounds.
$05.00 ,££;
QUICKLY! I h e battery type is ideal
for readings where 110 volt current is not available or it is inconvenient to plug-in. Motor of battery model operates on two lantern batteries of sufficient strength for 300 readings. Batteries are standard Ever-Ready No. 409 and Burgess No. 1842, and can be replaced at electrical dealers.
Both models are compact, light weight and well built for many years of service, with ordinary care. The front part of the carrying case is removable. The case is carried in an upright position so that water can be kept in the water chamber, ready for instant use. A dropper bottle for a reserve supply of distilled water is also contained in the case. Table for computing relative humidity and pocket slide rule for determining direct reading relative humidity are furnished with each instrument.
$55.00
121 W. Hubbard St. Chicago 10, Illinois
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SEE O i l EMIOT
CHICAGO COLISIUM NATIONAL CHEMICAL
EXPOSITION OCT. 12, 13, 14, 15, 16
1840
ARTHUR S. & COMPANY LA-PINE
LABORATOY APPARATUS & REAGENTS • INDUSTRIAL CHEMICALS