Feedback and Temperature Control
Scientific article about temperature controller. Addresses controller types, algorithms, transient responses and simulations.
http://newton.ex.ac.uk/teaching/CDHW/Feedback/

Why is Mercury liquid at room temperature?
Mercury; the element Mercury - WHY is it a liquid at room temperature?
http://www.zyra.org.uk/mercliq.htm

Anly Electronics Co., Ltd.
Manufacturer of timer, counter, controller, floatless relay, relay, solid state relay and digital temperature controller.
http://www.anly.com.tw/

Temperature Logger
Temperature logging and solar heated water controller. Build your own electronic project.
http://www.anotherurl.com/therm/Default.htm

Feedback and Temperature Control
An introduction to the effects of feedback using a PID temperature controller as a case study. An interactive simulation is also provided. From Charles D. H. Williams of the University of Exeter
http://newton.ex.ac.uk/teaching/CDHW/Feedback/index.html

McShane
Temperature controller, NTC thermistor sensor, PID, TEC and process control products. OEM industrial electronics products and services, design and manufacture.
http://mcshaneinc.com/

SMCair
Designs and manufactures clean room system, dehumidifier, controller air handling units.
http://www.smcair.com/

Mean Radiant Temperature
Focus on human thermal comfort by control of the Mean Radiant Temperature (MRT) of a space. Comprehensive tool set to calculate U-value, electrical use, room MRT and space heat loss. Resources through links and books.
http://www.meanradianttemperature.com/

Paragon
Paragon Auto Control established in 1996, principally engaged in manufacturing of world class range of process control instruments like Electronic Timer, Counters & Temperature controllers Time switch,Water level controller,Proximity sensor and controller. The highest product quality,individual consultation , advice for proper selection / application of instruments and fast delivery are the hallmarks of our company - Process Control Instruments, Electrical Switchgear, DIN Rail Timer, Analog Timer, Digital Timer, Electrical Control Panel Accessories, Temperature Controller, Proximity Switch, Liquid Level Control, Digital Preset Counter, Flame Failure Detector,Real Time Switch, Programmable counter, Electronic Timer, Analog Temperature Controller, Water Level Control.
http://www.paragoncontrol.com

Leierda Instrument Co.
1. Pressure Gauge: bourdon tube(general purpose),weather-proof, liquid filled, low-pressure, diaphragm-seal, with electric/micro contact,test pressure gauge,digital pressure gauge,diaphragm pressure, ss gauge,pressure switch. 2. ... ¡£Specializes in manufacture of tire pressure gauges, precision pressure gauges, equipment & instruments, test equipment for auto and more in over10 categories and several 10 varieties.
http://www.chinaleierda.com