Philadelphia Temperature Controls
Form an essential part of many temperature control
circuits. Philadelphia Mercury to Wire Thermostats are precision built
of the finest materials. Extra quality with accuracy of 0.05° F and
sensitivity from 0.01° F to 0.03° F. Furnished with or without
Sensitive Relay MR-41-S
This page shows a few of the hundreds of types which we manufacture for Industry. All instruments are made to meet the specification of each individual requirement.
Under Quality Control only the highest grade of materials and skilled labor go into the manufacture of these instruments which assure extreme accuracy and sensitivity, required by Industry today.
The degree centigrade (°C) was officially renamed Celsius in 1948 to avoid confusion with the angular measure known as the centigrade (one hundredth of a grade). The Celsius scale is named after the Swedish astronomer Anders Celsius (1701–1744), who devised it in 1742 but in reverse (freezing point was 100°; boiling point 0°).