Humidity measuring element is sensitive hair element 3. Thermo-Hygrograph records on one chart both temperature and humidity 4. The clocks of this instrument are Mechanical i24 Hours Rotation clock ways weekly winding ii7 Days Rotation clock ways weekly winding 5. Range: iTemperature: 00 C to 500 C iiHumidity: 0% to 100% A Thermo-Hygrograph is a chart recorder that measures and records both temperature and humidity (or dew point). Similar devices that record only one parameter are a thermograph for temperature and hygrograph for humidity.Uses a bi-metallic strip for temperature and one human hair bundle for humidity. Includes one red and blue felttipped pen to record the reading. A thermograph is usually configured with a pen that records temperature on a revolving cylinder. The pen is at the end of a lever that is controlled by a bi-metal strip of temperature-sensitive metal which bends as the temperature changes. The item "Vintage 1960's Thermo-Hygrograph Rototherm GLUCK Clock Barograph & Recorder-" is in sale since Thursday, October 23, 2014. This item is in the category "Antiques\Science/Medicine\Scientific Instruments".
The seller is "tamara_ltd" and is located in London. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Canada, Japan, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Thailand, Chile.